Validation: towed panel through the SimObject (S1)

Table of Contents

• Tests
• Removed tests
• NetValidation TowedPanel report
  • S1 L2 MF2022 text drag (asserted)
  • S1 L2 MF2022 text lift (not asserted, fails on N19a as in A6)
  • S1 L3 MF2022 Fig. 6/7 drag, N19a and N36a (asserted)
  • S1 L8 Zhan absolute R0, all speeds (v >= 0.5 asserted)
  • S1 L8 Zhan speed trend at 0 deg, all speeds (v >= 0.5 asserted)
  • S1 L8 Zhan R30/R0 and R60/R0, all speeds (not asserted, fails as in A6, MARE-0131)
  • S1 L8 Zhan speed trend at 30 and 60 deg, all speeds (not asserted, fails as in A6, MARE-0131)
  • S1 against the pure law (A6 EvaluateAt), components over \|F_law\| (asserted, 1e-6)
  • S1 steadiness over the last output step (reported; the result file's 7 digits)
  • Bulging variant (edge nodes towed, centre free) against the rigid panel; 'measured' = rigid (reported only)
• Data provenance
  • mf2022_table2_nets.csv
  • mf2022_eq10_11.csv
  • mf2022_text_loads.csv
  • mf2022_fig6_fig7_digitised.csv
  • mf2022_fig14_15_local_cd.csv
  • zhan2006_planar_tables1-3.csv

A rigid Net/NetStructure panel towed through still water (all nodes prescribed), end to end through the environment, for the MF2022 and Zhan cases. It asserts what the load-law tests (A6) assert and keeps DISABLED_ what they keep disabled. The load law alone against the same data: the pages Validation: MF2022 towed panels (L1-L4) and Validation: Zhan 2006 planar nets (L8) of fhsim_environment's Panel load laws: validation report (its doc/user/validation/); Zhan's nets: Validation: Zhan 2006 cylinder (S2, W9, S6).

Generated 2026-10-22 from commit 54caab2 2026-10-22 (with uncommitted changes under src/ or tests/); tests run 2026-10-22T08:19:44.257 (main entry) and 2026-10-22T08:34:15.500 (VALIDATION entry).

Tests

Status from the gtest XML of the last run. A DISABLED_ test fails against the current laws; its numbers are in the tables below, and it stays disabled until the owner decides the issue.

Test	Source	Status	Issues	Owner question
NetValidation_TowedPanel_VALIDATION.S1_AgreesWithThePanelLoadLaw	NetValidation_TowedPanel_Test.cpp:670	passed	–	–
NetValidation_TowedPanel_VALIDATION.S1_L2_TextDragAt1p75	NetValidation_TowedPanel_Test.cpp:643	passed	–	–
NetValidation_TowedPanel_VALIDATION.S1_L3_SpeedTrendN19aN36a	NetValidation_TowedPanel_Test.cpp:648	passed	–	–
NetValidation_TowedPanel_VALIDATION.S1_L8_AbsoluteDragAt0Deg	NetValidation_TowedPanel_Test.cpp:655	passed	–	–
NetValidation_TowedPanel_VALIDATION.S1_L8_SpeedTrendAt0Deg	NetValidation_TowedPanel_Test.cpp:660	passed	–	–
NetValidation_TowedPanel_VALIDATION.WritesReport	NetValidation_TowedPanel_Test.cpp:677	passed	–	–

Removed tests

Removed in the 2026-10-22 test audit (owner ruling 2026-10-22): DISABLED_ tests that failed against the current laws and had no open issue. Their facts are kept here; git log -S on the test's name recovers the code.

• S1 MF2022 text lift at 1.75 m/s, tolerance 15 % (twin of the fhsim_environment A6 lift test). Failed on N19a: 102 N measured, 81.2 N from S1 (-20.4 %, ratio 1.256; 88.9 N before MARE-0110). N33a passed since MARE-0110 (owner ruling 2026-10-13, c_l from the MF2022 Eq. 10 lift-to-drag ratio): 271 N measured, 243.5 N (-10.2 %; was 193.6 N, -28.6 %). MF2022's text lift for N19a lies above its own Eq. 10 trend, which the law now follows. S1 includes the in-plane twine friction (MARE-0111); A6 has 247.1 N and 83.5 N. Unchanged by the revised R1 (MARE-0131, 2026-10-20, lift b4 = 0.036: both cases are at 45 deg, where sin 4 theta = 0) and by option O1 for the drag (ENV-0120, 2026-10-21): N19a 81.2 N, -20.4 %.
• S1 Zhan angle ratios R30/R0 and R60/R0, tolerance 0.10. Failed (angle form, MARE-0131; drag only, unchanged by MARE-0110). S1 R60/R0 = 0.401-0.404 against Zhan's 0.377-0.579 (A6 without the twine friction: 0.395); errors -0.176 (s 0.223, 1.0 m/s), -0.142 (0.223, 0.75), -0.103 (0.223, 0.5), -0.136 (0.128, 0.25), -0.110 (0.128, 1.0); R30/R0 0.808 against 0.674 (s 0.128, 0.75 m/s, +0.134) and 1.307 (s 0.128, 0.25 m/s, -0.499): 7 of 24 rows. 2026-10-20 after the revised R1: 5 of 18 rows. 2026-10-21 with option O1 (ENV-0120, a3 = 0.017, a5 = 0.053, fhsim_environment 3.2.12): 1 of 18 rows, R60/R0 of the net s 0.215 at 0.5 m/s, model 0.481 against 0.377 (+0.104; the R60 row of s 0.223 at 1.0 m/s is -0.097). The owner accepts these near-misses (ENV-0120).
• S1 Zhan speed trend at 30 and 60 deg, tolerance 10 %. Failed: the inclined trend is close to the 0 deg trend while Zhan's R30 and R60 grow faster with speed. Owner ruling 2026-10-20 (ENV-0120): the trend comes from the net deforming in Zhan's frame, not from the panel law; FhSim models deformation in the structure, so a speed term in the law would count it twice. Errors R60(0.5)/R60(1.0) +38.3 % (s 0.128), +31.4 % (0.215), +18.6 % (0.223); R30(0.75)/R30(1.0) +20.1 % (0.128), +16.7 % (0.215): 13 of 24 rows (A6 without the twine friction: +38.7 %, +31.7 %, +18.8 %, 12 of 24). Re-run 2026-10-20 (revised R1) and 2026-10-21 (option O1): 8 of 12 rows fail, the speed trend does not depend on the angle form.

NetValidation TowedPanel report

tests/out/NetValidation_TowedPanel_report.txt, as the test wrote it.

NetValidation TowedPanel report (plan S1, MARE-0099). Rigid Net/NetStructure panel towed in still water, default law, SolidityModel Fixed.

Conventions: error = model/measured - 1 (in %) for loads and coefficients, model - measured for ratios and localCd; ratio = measured/model; margin = tolerance - |error| (negative = fails).

Tow: k = 1e+08 N/m, c = 2000 N s/m, end time 0.05 s; bulging variant 2 s. MF2022 Sn = Snm, Zhan Sn = s (K = 1, R2). Fluid and panel as in the A6 tests.

S1 L2 MF2022 text drag (asserted)

asserted; 2 rows, 0 of 2 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N19a Snm 0.193 drag 0 deg 1.75 m/s [N]	416	420.5	1.081 %	±15.000 %	13.919 %	within
N36a Snm 0.364 drag 0 deg 1.75 m/s [N]	934	996.5	6.691 %	±15.000 %	8.309 %	within

S1 L2 MF2022 text lift (not asserted, fails on N19a as in A6)

asserted; 2 rows, 1 of 2 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N19a Snm 0.193 lift 45 deg 1.75 m/s [N]	102	81.22	-20.374 %	±15.000 %	-5.374 %	outside
N33a Snm 0.331 lift 45 deg 1.75 m/s [N]	271	243.5	-10.159 %	±15.000 %	4.841 %	within

S1 L3 MF2022 Fig. 6/7 drag, N19a and N36a (asserted)

asserted; 20 rows, 0 of 20 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N36a Snm 0.364 drag 0 deg 0.50 m/s [N]	97	82.12	-15.345 %	±20.000 %	4.655 %	within
N36a Snm 0.364 drag 0 deg 0.75 m/s [N]	200	175.9	-12.037 %	±20.000 %	7.963 %	within
N36a Snm 0.364 drag 0 deg 1.00 m/s [N]	342	310.6	-9.184 %	±20.000 %	10.816 %	within
N36a Snm 0.364 drag 0 deg 1.25 m/s [N]	523	490.6	-6.198 %	±20.000 %	13.802 %	within
N36a Snm 0.364 drag 0 deg 1.75 m/s [N]	933	996.5	6.805 %	±20.000 %	13.195 %	within
N19a Snm 0.193 drag 0 deg 0.50 m/s [N]	37	42.8	15.675 %	±20.000 %	4.325 %	within
N19a Snm 0.193 drag 0 deg 0.75 m/s [N]	81	89.05	9.933 %	±20.000 %	10.067 %	within
N19a Snm 0.193 drag 0 deg 1.00 m/s [N]	143	149.3	4.405 %	±20.000 %	15.595 %	within
N19a Snm 0.193 drag 0 deg 1.25 m/s [N]	218	224	2.742 %	±20.000 %	17.258 %	within
N19a Snm 0.193 drag 0 deg 1.75 m/s [N]	415	420.5	1.324 %	±20.000 %	18.676 %	within
N36a Snm 0.364 drag 45 deg 0.50 m/s [N]	48	50.26	4.699 %	±20.000 %	15.301 %	within
N36a Snm 0.364 drag 45 deg 0.75 m/s [N]	111	107.7	-2.970 %	±20.000 %	17.030 %	within
N36a Snm 0.364 drag 45 deg 1.00 m/s [N]	200	190.2	-4.922 %	±20.000 %	15.078 %	within
N36a Snm 0.364 drag 45 deg 1.25 m/s [N]	308	300.3	-2.490 %	±20.000 %	17.510 %	within
N36a Snm 0.364 drag 45 deg 1.75 m/s [N]	578	609.9	5.519 %	±20.000 %	14.481 %	within
N19a Snm 0.193 drag 45 deg 0.50 m/s [N]	22	26.22	19.162 %	±20.000 %	0.838 %	within
N19a Snm 0.193 drag 45 deg 0.75 m/s [N]	50	54.57	9.148 %	±20.000 %	10.852 %	within
N19a Snm 0.193 drag 45 deg 1.00 m/s [N]	87	91.55	5.224 %	±20.000 %	14.776 %	within
N19a Snm 0.193 drag 45 deg 1.25 m/s [N]	137	137.4	0.279 %	±20.000 %	19.721 %	within
N19a Snm 0.193 drag 45 deg 1.75 m/s [N]	252	258	2.389 %	±20.000 %	17.611 %	within

S1 L8 Zhan absolute R0, all speeds (v >= 0.5 asserted)

asserted; 12 rows, 0 of 12 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
s 0.223 v 0.25 R0 [N]	11.77	9.603	-18.411 %	±20.000 %	1.589 %	within
s 0.223 v 0.50 R0 [N]	38.26	33.47	-12.519 %	±20.000 %	7.481 %	within
s 0.223 v 0.75 R0 [N]	82.89	70.66	-14.760 %	±20.000 %	5.240 %	within
s 0.223 v 1.00 R0 [N]	145.7	123	-15.570 %	±20.000 %	4.430 %	within
s 0.128 v 0.25 R0 [N]	6.38	5.545	-13.091 %	±20.000 %	6.909 %	within
s 0.128 v 0.50 R0 [N]	20.11	20.2	0.424 %	±20.000 %	19.576 %	within
s 0.128 v 0.75 R0 [N]	43.65	41.92	-3.958 %	±20.000 %	16.042 %	within
s 0.128 v 1.00 R0 [N]	76.52	70.37	-8.036 %	±20.000 %	11.964 %	within
s 0.215 v 0.25 R0 [N]	11.28	10.09	-10.532 %	±20.000 %	9.468 %	within
s 0.215 v 0.50 R0 [N]	38.26	37.02	-3.243 %	±20.000 %	16.757 %	within
s 0.215 v 0.75 R0 [N]	78.48	77	-1.887 %	±20.000 %	18.113 %	within
s 0.215 v 1.00 R0 [N]	138.8	129.1	-6.986 %	±20.000 %	13.014 %	within

S1 L8 Zhan speed trend at 0 deg, all speeds (v >= 0.5 asserted)

asserted; 12 rows, 0 of 12 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
s 0.223 R0(0.25)/R0(1.00)	0.08079	0.07807	-3.365 %	±10.000 %	6.635 %	within
s 0.223 R0(0.50)/R0(1.00)	0.2626	0.2721	3.613 %	±10.000 %	6.387 %	within
s 0.223 R0(0.75)/R0(1.00)	0.569	0.5744	0.959 %	±10.000 %	9.041 %	within
s 0.223 R0(1.00)/R0(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.128 R0(0.25)/R0(1.00)	0.08338	0.07879	-5.497 %	±10.000 %	4.503 %	within
s 0.128 R0(0.50)/R0(1.00)	0.2628	0.287	9.200 %	±10.000 %	0.800 %	within
s 0.128 R0(0.75)/R0(1.00)	0.5704	0.5957	4.434 %	±10.000 %	5.566 %	within
s 0.128 R0(1.00)/R0(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.215 R0(0.25)/R0(1.00)	0.08126	0.07816	-3.812 %	±10.000 %	6.188 %	within
s 0.215 R0(0.50)/R0(1.00)	0.2756	0.2867	4.025 %	±10.000 %	5.975 %	within
s 0.215 R0(0.75)/R0(1.00)	0.5654	0.5964	5.482 %	±10.000 %	4.518 %	within
s 0.215 R0(1.00)/R0(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within

S1 L8 Zhan R30/R0 and R60/R0, all speeds (not asserted, fails as in A6, MARE-0131)

asserted; 24 rows, 4 of 24 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
s 0.223 v 0.25 R30/R0	0.8088	0.7618	-0.047	±0.1	0.053	within
s 0.223 v 0.25 R60/R0	0.5004	0.4809	-0.02	±0.1	0.08	within
s 0.223 v 0.50 R30/R0	0.8231	0.7622	-0.061	±0.1	0.039	within
s 0.223 v 0.50 R60/R0	0.5052	0.4818	-0.023	±0.1	0.077	within
s 0.223 v 0.75 R30/R0	0.7669	0.7624	-0.005	±0.1	0.095	within
s 0.223 v 0.75 R60/R0	0.5445	0.4823	-0.062	±0.1	0.038	within
s 0.223 v 1.00 R30/R0	0.8249	0.7624	-0.062	±0.1	0.038	within
s 0.223 v 1.00 R60/R0	0.5791	0.4825	-0.097	±0.1	0.003	within
s 0.128 v 0.25 R30/R0	1.307	0.7619	-0.545	±0.1	-0.445	outside
s 0.128 v 0.25 R60/R0	0.5376	0.4814	-0.056	±0.1	0.044	within
s 0.128 v 0.50 R30/R0	0.7708	0.7622	-0.009	±0.1	0.091	within
s 0.128 v 0.50 R60/R0	0.4048	0.4821	0.077	±0.1	0.023	within
s 0.128 v 0.75 R30/R0	0.6742	0.7624	0.088	±0.1	0.012	within
s 0.128 v 0.75 R60/R0	0.4541	0.4828	0.029	±0.1	0.071	within
s 0.128 v 1.00 R30/R0	0.7756	0.7626	-0.013	±0.1	0.087	within
s 0.128 v 1.00 R60/R0	0.5141	0.4832	-0.031	±0.1	0.069	within
s 0.215 v 0.25 R30/R0	0.8697	0.7617	-0.108	±0.1	-0.008	outside
s 0.215 v 0.25 R60/R0	0.3652	0.4804	0.115	±0.1	-0.015	outside
s 0.215 v 0.50 R30/R0	0.759	0.7619	0.003	±0.1	0.097	within
s 0.215 v 0.50 R60/R0	0.3769	0.481	0.104	±0.1	-0.004	outside
s 0.215 v 0.75 R30/R0	0.7313	0.7621	0.031	±0.1	0.069	within
s 0.215 v 0.75 R60/R0	0.4376	0.4815	0.044	±0.1	0.056	within
s 0.215 v 1.00 R30/R0	0.8092	0.7622	-0.047	±0.1	0.053	within
s 0.215 v 1.00 R60/R0	0.4771	0.4819	0.005	±0.1	0.095	within

S1 L8 Zhan speed trend at 30 and 60 deg, all speeds (not asserted, fails as in A6, MARE-0131)

asserted; 24 rows, 12 of 24 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
s 0.223 R30(0.25)/R30(1.00)	0.07922	0.07801	-1.523 %	±10.000 %	8.477 %	within
s 0.223 R60(0.25)/R60(1.00)	0.06981	0.07782	11.467 %	±10.000 %	-1.467 %	outside
s 0.223 R30(0.50)/R30(1.00)	0.262	0.272	3.812 %	±10.000 %	6.188 %	within
s 0.223 R60(0.50)/R60(1.00)	0.2291	0.2718	18.613 %	±10.000 %	-8.613 %	outside
s 0.223 R30(0.75)/R30(1.00)	0.529	0.5744	8.581 %	±10.000 %	1.419 %	within
s 0.223 R60(0.75)/R60(1.00)	0.5349	0.5742	7.354 %	±10.000 %	2.646 %	within
s 0.223 R30(1.00)/R30(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.223 R60(1.00)/R60(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.128 R30(0.25)/R30(1.00)	0.1405	0.07873	-43.975 %	±10.000 %	-33.975 %	outside
s 0.128 R60(0.25)/R60(1.00)	0.08719	0.0785	-9.967 %	±10.000 %	0.033 %	within
s 0.128 R30(0.50)/R30(1.00)	0.2612	0.2868	9.830 %	±10.000 %	0.170 %	within
s 0.128 R60(0.50)/R60(1.00)	0.2069	0.2863	38.374 %	±10.000 %	-28.374 %	outside
s 0.128 R30(0.75)/R30(1.00)	0.4959	0.5956	20.112 %	±10.000 %	-10.112 %	outside
s 0.128 R60(0.75)/R60(1.00)	0.5038	0.5951	18.126 %	±10.000 %	-8.126 %	outside
s 0.128 R30(1.00)/R30(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.128 R60(1.00)/R60(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.215 R30(0.25)/R30(1.00)	0.08734	0.07811	-10.569 %	±10.000 %	-0.569 %	outside
s 0.215 R60(0.25)/R60(1.00)	0.06222	0.07792	25.246 %	±10.000 %	-15.246 %	outside
s 0.215 R30(0.50)/R30(1.00)	0.2585	0.2866	10.847 %	±10.000 %	-0.847 %	outside
s 0.215 R60(0.50)/R60(1.00)	0.2178	0.2862	31.411 %	±10.000 %	-21.411 %	outside
s 0.215 R30(0.75)/R30(1.00)	0.511	0.5963	16.695 %	±10.000 %	-6.695 %	outside
s 0.215 R60(0.75)/R60(1.00)	0.5186	0.5959	14.902 %	±10.000 %	-4.902 %	outside
s 0.215 R30(1.00)/R30(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within
s 0.215 R60(1.00)/R60(1.00)	1	1	0.000 %	±10.000 %	10.000 %	within

S1 against the pure law (A6 EvaluateAt), components over \|F_law\| (asserted, 1e-6)

asserted; 114 rows, 0 of 114 outside the tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N36a Sn 0.364 0 deg 0.50 m/s drag/|F|	1	1	-0	±0	0	within
N36a Sn 0.364 0 deg 0.50 m/s lift/|F|	0	2.436e-09	0	±0	0	within
N36a Sn 0.364 0 deg 0.75 m/s drag/|F|	1	1	-0	±0	0	within
N36a Sn 0.364 0 deg 0.75 m/s lift/|F|	0	1.137e-09	0	±0	0	within
N36a Sn 0.364 0 deg 1.00 m/s drag/|F|	1	1	-0	±0	0	within
N36a Sn 0.364 0 deg 1.00 m/s lift/|F|	0	9.659e-10	0	±0	0	within
N36a Sn 0.364 0 deg 1.25 m/s drag/|F|	1	1	0	±0	0	within
N36a Sn 0.364 0 deg 1.25 m/s lift/|F|	0	6.115e-10	0	±0	0	within
N36a Sn 0.364 0 deg 1.75 m/s drag/|F|	1	1	0	±0	0	within
N36a Sn 0.364 0 deg 1.75 m/s lift/|F|	0	5.019e-10	0	±0	0	within
N19a Sn 0.193 0 deg 0.50 m/s drag/|F|	1	1	0	±0	0	within
N19a Sn 0.193 0 deg 0.50 m/s lift/|F|	0	7.053e-09	0	±0	0	within
N19a Sn 0.193 0 deg 0.75 m/s drag/|F|	1	1	-0	±0	0	within
N19a Sn 0.193 0 deg 0.75 m/s lift/|F|	0	3.37e-09	0	±0	0	within
N19a Sn 0.193 0 deg 1.00 m/s drag/|F|	1	1	0	±0	0	within
N19a Sn 0.193 0 deg 1.00 m/s lift/|F|	0	1.302e-10	0	±0	0	within
N19a Sn 0.193 0 deg 1.25 m/s drag/|F|	1	1	0	±0	0	within
N19a Sn 0.193 0 deg 1.25 m/s lift/|F|	0	4.592e-11	0	±0	0	within
N19a Sn 0.193 0 deg 1.75 m/s drag/|F|	1	1	0	±0	0	within
N19a Sn 0.193 0 deg 1.75 m/s lift/|F|	0	7.139e-10	0	±0	0	within
N36a Sn 0.364 45 deg 0.50 m/s drag/|F|	0.9045	0.9045	0	±0	0	within
N36a Sn 0.364 45 deg 0.50 m/s lift/|F|	0.4264	0.4264	0	±0	0	within
N36a Sn 0.364 45 deg 0.75 m/s drag/|F|	0.9047	0.9047	-0	±0	0	within
N36a Sn 0.364 45 deg 0.75 m/s lift/|F|	0.426	0.426	-0	±0	0	within
N36a Sn 0.364 45 deg 1.00 m/s drag/|F|	0.9047	0.9047	-0	±0	0	within
N36a Sn 0.364 45 deg 1.00 m/s lift/|F|	0.426	0.426	-0	±0	0	within
N36a Sn 0.364 45 deg 1.25 m/s drag/|F|	0.9047	0.9047	-0	±0	0	within
N36a Sn 0.364 45 deg 1.25 m/s lift/|F|	0.4261	0.4261	-0	±0	0	within
N36a Sn 0.364 45 deg 1.75 m/s drag/|F|	0.9046	0.9046	0	±0	0	within
N36a Sn 0.364 45 deg 1.75 m/s lift/|F|	0.4263	0.4263	0	±0	0	within
N19a Sn 0.193 45 deg 0.50 m/s drag/|F|	0.9532	0.9532	0	±0	0	within
N19a Sn 0.193 45 deg 0.50 m/s lift/|F|	0.3023	0.3023	0	±0	0	within
N19a Sn 0.193 45 deg 0.75 m/s drag/|F|	0.9534	0.9534	0	±0	0	within
N19a Sn 0.193 45 deg 0.75 m/s lift/|F|	0.3016	0.3016	0	±0	0	within
N19a Sn 0.193 45 deg 1.00 m/s drag/|F|	0.9536	0.9536	0	±0	0	within
N19a Sn 0.193 45 deg 1.00 m/s lift/|F|	0.3011	0.3011	0	±0	0	within
N19a Sn 0.193 45 deg 1.25 m/s drag/|F|	0.9537	0.9537	-0	±0	0	within
N19a Sn 0.193 45 deg 1.25 m/s lift/|F|	0.3007	0.3007	0	±0	0	within
N19a Sn 0.193 45 deg 1.75 m/s drag/|F|	0.9539	0.9539	0	±0	0	within
N19a Sn 0.193 45 deg 1.75 m/s lift/|F|	0.3003	0.3003	0	±0	0	within
N33a Sn 0.331 45 deg 1.75 m/s drag/|F|	0.914	0.914	-0	±0	0	within
N33a Sn 0.331 45 deg 1.75 m/s lift/|F|	0.4057	0.4057	-0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.25 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.25 m/s lift/|F|	0	3.124e-08	0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.25 m/s drag/|F|	0.9712	0.9712	0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.25 m/s lift/|F|	0.2385	0.2385	0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.25 m/s drag/|F|	0.9402	0.9402	0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.25 m/s lift/|F|	0.3405	0.3405	0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.50 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.50 m/s lift/|F|	0	8.966e-09	0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.50 m/s drag/|F|	0.9714	0.9714	-0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.50 m/s lift/|F|	0.2376	0.2376	-0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.50 m/s drag/|F|	0.9408	0.9408	0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.50 m/s lift/|F|	0.339	0.339	-0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.75 m/s drag/|F|	1	1	-0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 0.75 m/s lift/|F|	0	1.415e-08	0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.75 m/s drag/|F|	0.9715	0.9715	-0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 0.75 m/s lift/|F|	0.2372	0.2372	-0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.75 m/s drag/|F|	0.9411	0.9411	-0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 0.75 m/s lift/|F|	0.3382	0.3382	0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 1.00 m/s drag/|F|	1	1	-0	±0	0	within
Zhan_s2230 Sn 0.223 0 deg 1.00 m/s lift/|F|	0	3.254e-09	0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s drag/|F|	0.9715	0.9715	-0	±0	0	within
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s lift/|F|	0.2371	0.2371	-0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s drag/|F|	0.9412	0.9412	-0	±0	0	within
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s lift/|F|	0.3379	0.3379	-0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.25 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.25 m/s lift/|F|	0	1.823e-08	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.25 m/s drag/|F|	0.9761	0.9761	-0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.25 m/s lift/|F|	0.2174	0.2174	-0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.25 m/s drag/|F|	0.9503	0.9503	-0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.25 m/s lift/|F|	0.3115	0.3115	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.50 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.50 m/s lift/|F|	0	9.917e-09	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.50 m/s drag/|F|	0.9762	0.9762	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.50 m/s lift/|F|	0.2168	0.2168	-0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.50 m/s drag/|F|	0.9506	0.9506	0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.50 m/s lift/|F|	0.3104	0.3104	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.75 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 0.75 m/s lift/|F|	0	2.438e-09	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.75 m/s drag/|F|	0.9763	0.9763	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 0.75 m/s lift/|F|	0.2163	0.2163	-0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.75 m/s drag/|F|	0.951	0.951	0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 0.75 m/s lift/|F|	0.3093	0.3093	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 1.00 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s1280 Sn 0.128 0 deg 1.00 m/s lift/|F|	0	2.844e-09	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s drag/|F|	0.9764	0.9764	0	±0	0	within
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s lift/|F|	0.2158	0.2158	0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s drag/|F|	0.9512	0.9512	-0	±0	0	within
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s lift/|F|	0.3086	0.3086	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.25 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.25 m/s lift/|F|	0	2.973e-08	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.25 m/s drag/|F|	0.9721	0.9721	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.25 m/s lift/|F|	0.2344	0.2344	0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.25 m/s drag/|F|	0.9421	0.9421	0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.25 m/s lift/|F|	0.3353	0.3353	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.50 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.50 m/s lift/|F|	0	1.351e-08	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.50 m/s drag/|F|	0.9722	0.9722	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.50 m/s lift/|F|	0.2339	0.2339	-0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.50 m/s drag/|F|	0.9424	0.9424	-0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.50 m/s lift/|F|	0.3344	0.3344	-0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.75 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 0.75 m/s lift/|F|	0	3.896e-09	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.75 m/s drag/|F|	0.9724	0.9724	-0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 0.75 m/s lift/|F|	0.2335	0.2335	-0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.75 m/s drag/|F|	0.9427	0.9427	-0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 0.75 m/s lift/|F|	0.3335	0.3335	-0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 1.00 m/s drag/|F|	1	1	0	±0	0	within
Zhan_s2150 Sn 0.215 0 deg 1.00 m/s lift/|F|	0	1.55e-09	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s drag/|F|	0.9724	0.9724	0	±0	0	within
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s lift/|F|	0.2331	0.2331	0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s drag/|F|	0.943	0.943	-0	±0	0	within
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s lift/|F|	0.3329	0.3329	-0	±0	0	within

S1 steadiness over the last output step (reported; the result file's 7 digits)

reported; 57 rows, no tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N36a Sn 0.364 0 deg 0.50 m/s steadiness	0	1.218e-09	0	–	–	reported
N36a Sn 0.364 0 deg 0.75 m/s steadiness	0	1.137e-09	0	–	–	reported
N36a Sn 0.364 0 deg 1.00 m/s steadiness	0	1.288e-09	0	–	–	reported
N36a Sn 0.364 0 deg 1.25 m/s steadiness	0	1.223e-09	0	–	–	reported
N36a Sn 0.364 0 deg 1.75 m/s steadiness	0	9.061e-10	0	–	–	reported
N19a Sn 0.193 0 deg 0.50 m/s steadiness	0	7.761e-10	0	–	–	reported
N19a Sn 0.193 0 deg 0.75 m/s steadiness	0	7.862e-09	0	–	–	reported
N19a Sn 0.193 0 deg 1.00 m/s steadiness	0	2.009e-09	0	–	–	reported
N19a Sn 0.193 0 deg 1.25 m/s steadiness	0	7.649e-11	0	–	–	reported
N19a Sn 0.193 0 deg 1.75 m/s steadiness	0	4.757e-10	0	–	–	reported
N36a Sn 0.364 45 deg 0.50 m/s steadiness	0	1.8e-09	0	–	–	reported
N36a Sn 0.364 45 deg 0.75 m/s steadiness	0	8.4e-10	0	–	–	reported
N36a Sn 0.364 45 deg 1.00 m/s steadiness	0	1.903e-09	0	–	–	reported
N36a Sn 0.364 45 deg 1.25 m/s steadiness	0	9.037e-10	0	–	–	reported
N36a Sn 0.364 45 deg 1.75 m/s steadiness	0	5.933e-10	0	–	–	reported
N19a Sn 0.193 45 deg 0.50 m/s steadiness	0	1.091e-08	0	–	–	reported
N19a Sn 0.193 45 deg 0.75 m/s steadiness	0	5.241e-09	0	–	–	reported
N19a Sn 0.193 45 deg 1.00 m/s steadiness	0	1.042e-09	0	–	–	reported
N19a Sn 0.193 45 deg 1.25 m/s steadiness	0	2.777e-09	0	–	–	reported
N19a Sn 0.193 45 deg 1.75 m/s steadiness	0	3.697e-10	0	–	–	reported
N33a Sn 0.331 45 deg 1.75 m/s steadiness	0	6.665e-10	0	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 0.25 m/s steadiness	0	3.124e-08	0	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 0.25 m/s steadiness	0	7.965e-08	0	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 0.25 m/s steadiness	0	0	0	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 0.50 m/s steadiness	0	1.494e-08	0	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 0.50 m/s steadiness	0	3.808e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 0.50 m/s steadiness	0	5.834e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 0.75 m/s steadiness	0	7.08e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 0.75 m/s steadiness	0	1.803e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 0.75 m/s steadiness	0	1.105e-08	0	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 1.00 m/s steadiness	0	8.131e-10	0	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s steadiness	0	2.072e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s steadiness	0	3.172e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 0.25 m/s steadiness	0	1.871e-08	0	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 0.25 m/s steadiness	0	3.267e-08	0	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 0.25 m/s steadiness	0	1.78e-07	0	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 0.50 m/s steadiness	0	9.903e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 0.50 m/s steadiness	0	1.903e-08	0	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 0.50 m/s steadiness	0	9.763e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 0.75 m/s steadiness	0	2.407e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 0.75 m/s steadiness	0	0	0	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 0.75 m/s steadiness	0	9.398e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 1.00 m/s steadiness	0	1.929e-11	0	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s steadiness	0	1.092e-08	0	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s steadiness	0	1.678e-08	0	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 0.25 m/s steadiness	0	3.967e-08	0	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 0.25 m/s steadiness	0	1.265e-08	0	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 0.25 m/s steadiness	0	3.886e-08	0	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 0.50 m/s steadiness	0	1.081e-08	0	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 0.50 m/s steadiness	0	0	0	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 0.50 m/s steadiness	0	5.293e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 0.75 m/s steadiness	0	5.195e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 0.75 m/s steadiness	0	3.314e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 0.75 m/s steadiness	0	5.086e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 1.00 m/s steadiness	0	2.884e-11	0	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s steadiness	0	1.976e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s steadiness	0	7.578e-09	0	–	–	reported

Largest |S1 - law| / |F_law| over all cases: 4.564e-07 (Zhan_s2150 Sn 0.215 0 deg 0.25 m/s drag/|F|; tolerance 1e-06; the result file's 7 digits give up to 5e-7); largest steadiness: 1.780e-07 (reported).

Bulging variant (edge nodes towed, centre free) against the rigid panel; 'measured' = rigid (reported only)

reported; 34 rows, no tolerance.

Case	Measured	Model	Error	Tolerance	Margin	Result
N19a Sn 0.193 0 deg 1.75 m/s drag [N]	420.5	409.4	-2.639 %	–	–	reported
N19a Sn 0.193 0 deg 1.75 m/s steadiness	0	4.372e-13	0	–	–	reported
N19a Sn 0.193 45 deg 1.75 m/s drag [N]	258	260.8	1.059 %	–	–	reported
N19a Sn 0.193 45 deg 1.75 m/s lift [N]	81.22	78.98	-2.760 %	–	–	reported
N19a Sn 0.193 45 deg 1.75 m/s steadiness	0	0	0	–	–	reported
N36a Sn 0.364 0 deg 1.75 m/s drag [N]	996.5	977	-1.954 %	–	–	reported
N36a Sn 0.364 0 deg 1.75 m/s steadiness	0	7.165e-10	0	–	–	reported
N36a Sn 0.364 45 deg 1.75 m/s drag [N]	609.9	614.9	0.815 %	–	–	reported
N36a Sn 0.364 45 deg 1.75 m/s lift [N]	287.4	281.3	-2.121 %	–	–	reported
N36a Sn 0.364 45 deg 1.75 m/s steadiness	0	1.479e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 1.00 m/s drag [N]	123	122.2	-0.620 %	–	–	reported
Zhan_s2230 Sn 0.223 0 deg 1.00 m/s steadiness	0	2.458e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s drag [N]	93.78	93.77	-0.007 %	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s lift [N]	22.88	22.74	-0.639 %	–	–	reported
Zhan_s2230 Sn 0.223 30 deg 1.00 m/s steadiness	0	1.036e-09	0	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s drag [N]	59.34	59.34	-0.001 %	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s lift [N]	21.31	21.23	-0.340 %	–	–	reported
Zhan_s2230 Sn 0.223 60 deg 1.00 m/s steadiness	0	4.76e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 1.00 m/s drag [N]	70.37	69.73	-0.905 %	–	–	reported
Zhan_s1280 Sn 0.128 0 deg 1.00 m/s steadiness	0	1.435e-09	0	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s drag [N]	53.66	53.66	-0.007 %	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s lift [N]	11.86	11.75	-0.938 %	–	–	reported
Zhan_s1280 Sn 0.128 30 deg 1.00 m/s steadiness	0	0	0	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s drag [N]	34.01	34.01	-0.001 %	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s lift [N]	11.03	10.98	-0.490 %	–	–	reported
Zhan_s1280 Sn 0.128 60 deg 1.00 m/s steadiness	0	5.597e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 1.00 m/s drag [N]	129.1	127.8	-1.042 %	–	–	reported
Zhan_s2150 Sn 0.215 0 deg 1.00 m/s steadiness	0	1.574e-09	0	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s drag [N]	98.41	98.4	-0.009 %	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s lift [N]	23.59	23.33	-1.093 %	–	–	reported
Zhan_s2150 Sn 0.215 30 deg 1.00 m/s steadiness	0	9.888e-10	0	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s drag [N]	62.22	62.22	-0.003 %	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s lift [N]	21.96	21.84	-0.581 %	–	–	reported
Zhan_s2150 Sn 0.215 60 deg 1.00 m/s steadiness	0	0	0	–	–	reported

Data provenance

Every measured number in the tables above comes from these files (contract C6); the header of each gives the paper, the table or figure, how it was obtained and its uncertainty.

mf2022_table2_nets.csv

tests/data/mf2022_table2_nets.csv, 8 rows.

Field	Value
source	Moe Foere H, Endresen PC, Bjelland HV (2022), Load coefficients and dimensions of Raschel knitted netting materials in fish farms, J. Offshore Mech. Arct. Eng. 144(4) 041301 (MF2022)
location	Table 2 (t, Snm, K; PDF p. 3) and Table 1 (s, Sne; PDF p. 2)
kind	tabulated
uncertainty	as published (values copied exactly); MF2022 give no error bars for Table 1 or Table 2
units	snm [-], t_mm [mm], knot_factor [-], s_mm [mm], sne [-]
notes	Rows in table order N19a, N26a, N33a, N36a, N18b, N20b, N26b, N33b; each net is identified by its Snm elsewhere in the MF2022 files.
notes	t_mm is the Table 2 (image analysis) twine thickness; Table 1 (hand measured) gives the same t except N20b, 2.2 mm in Table 1 and 2.5 mm in Table 2.
notes	s_mm and sne are Table 1 (mesh side by frame dimension / mesh count; Sne = 2t/s with the Table 1 t). The a nets were towed in 2020, the b nets in 2019.
notes	Text-stated setup (PDF p. 3-4): panel = inner frame B x H = 1.215 x 0.985 m; rho = 998 kg/m3; nu = 1e-6 m2/s; Rn = U t / nu (Eq. 4); frame loads subtracted.

snm	t_mm	knot_factor	s_mm	sne
0.193	0.7	1.11	7.8	0.179
0.262	0.7	1.09	5.5	0.255
0.331	2.0	1.21	13.5	0.296
0.364	1.5	1.19	9.0	0.333
0.185	2.5	1.23	32.4	0.15
0.199	2.5	1.16	27.5	0.16
0.257	2.0	1.17	17.3	0.23
0.328	1.3	1.08	8.0	0.32

mf2022_eq10_11.csv

tests/data/mf2022_eq10_11.csv, 4 rows.

Field	Value
source	Moe Foere H, Endresen PC, Bjelland HV (2022), J. Offshore Mech. Arct. Eng. 144(4) 041301 (MF2022)
location	Eq. 10 (PDF p. 5) and Eq. 11 (PDF p. 6)
kind	equation
uncertainty	coefficients copied exactly; the fits are trend lines through the Fig. 9-11 and Fig. 13 data and carry the scatter of those figures (MF2022 note that lift is net-dependent)
units	quantity_id [-], theta_deg [deg], c0 [-], c1 [-], c2 [-], snm_min [-], snm_max [-], rn [-]
notes	value = c0 + c1*Snm + c2*Snm^2, valid for snm_min <= Snm <= snm_max at Reynolds number rn (Rn = U t / nu, Eq. 4).
notes	quantity_id 1 = C_D (Eq. 3, panel area A = B*H and towing speed U), 2 = C_L (Eq. 3), 3 = r = U_r/U, the velocity reduction factor downstream of the panel (Eq. 5, Eq. 11).
notes	Eq. 10 as printed: C_D(0) = 1.782 Snm^2 + 1.057 Snm - 0.053; C_D(45) = 1.165 Snm - 0.0919; C_L(45) = 1.693 Snm^2 - 0.217 Snm + 0.022. Eq. 11: r(Snm) = 1.08 - 0.97 Snm, "for Snm in [0.18, 0.36] and Rn approx. 2000".

quantity_id	theta_deg	c0	c1	c2	snm_min	snm_max	rn
1	0	-0.053	1.057	1.782	0.18	0.36	2000
1	45	-0.0919	1.165	0	0.18	0.36	2000
2	45	0.022	-0.217	1.693	0.18	0.36	2000
3	0	1.08	-0.97	0	0.18	0.36	2000

mf2022_text_loads.csv

tests/data/mf2022_text_loads.csv, 4 rows.

Field	Value
source	Moe Foere H, Endresen PC, Bjelland HV (2022), J. Offshore Mech. Arct. Eng. 144(4) 041301 (MF2022)
location	Results, "Drag and Lift Forces" (PDF p. 5); net attribution from Figs. 6 and 8 (PDF pp. 5-6)
kind	text
uncertainty	the numbers are copied exactly from the text; MF2022 state no error, and the loads are netting only (frame loads subtracted)
units	snm [-], theta_deg [deg], u_m_s [m/s], quantity_id [-], force_N [N]
notes	quantity_id 1 = drag (towing direction), 2 = lift (perpendicular). The text gives "maximum values of 416-934 N [drag] and 102-271 N [lift] for a towing velocity of 1.75 m/s" for the 2020 nets (N19a, N26a, N33a, N36a); drag is at 0 deg (Fig. 6), lift at 45 deg (Fig. 8).
notes	The text does not name the nets. Drag 416 N = N19a and 934 N = N36a (Fig. 6). Lift 102 N = N19a (Fig. 8). Lift 271 N is N33a in Fig. 8: at 1.75 m/s its triangle (approx. 274 N) lies above the N36a square (approx. 264 N, digitised by A1). The plan's attribution of 271 N to N36a is not supported by Fig. 8.
notes	Also text-stated (not rows): doubling U from 0.5 to 1 m/s raises the drag by a factor 3.6-3.8; frame drag at 1.75 m/s 162-185 N (0 deg) and 112-133 N (45 deg); clean frame 114 N and 97 N.

snm	theta_deg	u_m_s	quantity_id	force_N
0.193	0	1.75	1	416
0.364	0	1.75	1	934
0.193	45	1.75	2	102
0.331	45	1.75	2	271

mf2022_fig6_fig7_digitised.csv

tests/data/mf2022_fig6_fig7_digitised.csv, 39 rows.

Field	Value
source	Moe Foere H, Endresen PC, Bjelland HV (2022), J. Offshore Mech. Arct. Eng. 144(4) 041301 (MF2022)
location	Fig. 6 (drag, theta = 0, PDF p. 5) and Fig. 7 (drag, theta = 45 deg, PDF p. 5)
kind	digitised
uncertainty	+-6 N for markers that are fully visible; +-10 N for markers partly hidden under another marker (N36a, N33a, N26a at 0.5 and 0.75 m/s); u_m_s +-0.005 m/s
units	snm [-], theta_deg [deg], u_m_s [m/s], drag_N [N]
notes	Digitised by WP-A1 from the embedded raster figures (843 px wide, 266 ppi): axes calibrated by least squares on the grid lines (Fig. 6: 0.505 px/N, Fig. 7: 0.511 px/N); marker centres from the marker blobs, or from a visible marker edge plus half the marker size where markers overlap. Not eye-read.
notes	Nets by Snm: 0.193 N19a, 0.262 N26a, 0.331 N33a, 0.364 N36a (Table 2). N33a and N26a were towed at 1.35 m/s where N36a and N19a were towed at 1.25 m/s. Speeds 0.1, 0.15 and 0.25 m/s are omitted: the markers overlap near zero load (below about 25 N), under the digitising resolution.
notes	Fig. 7 N33a at 0.5 m/s is omitted: its marker is hidden. Check against the text: N19a 0 deg at 1.75 m/s = 415 N (text 416 N), N36a = 933 N (text 934 N). Drag ratio F(1.0)/F(0.5) at 0 deg from these rows is 3.46-3.83 (text: 3.6-3.8), within the stated uncertainty.

snm	theta_deg	u_m_s	drag_N
0.364	0	0.50	97
0.364	0	0.75	200
0.364	0	1.00	342
0.364	0	1.25	523
0.364	0	1.75	933
0.331	0	0.50	92
0.331	0	0.75	183
0.331	0	1.00	316
0.331	0	1.35	579
0.331	0	1.75	908
0.262	0	0.50	59
0.262	0	0.75	121
0.262	0	1.00	211
0.262	0	1.35	380
0.262	0	1.75	609
0.193	0	0.50	37
0.193	0	0.75	81
0.193	0	1.00	143
0.193	0	1.25	218
0.193	0	1.75	415
0.364	45	0.50	48
0.364	45	0.75	111
0.364	45	1.00	200
0.364	45	1.25	308
0.364	45	1.75	578
0.331	45	0.75	103
0.331	45	1.00	175
0.331	45	1.35	326
0.331	45	1.75	527
0.262	45	0.50	32
0.262	45	0.75	70
0.262	45	1.00	127
0.262	45	1.35	233
0.262	45	1.75	370
0.193	45	0.50	22
0.193	45	0.75	50
0.193	45	1.00	87
0.193	45	1.25	137
0.193	45	1.75	252

mf2022_fig14_15_local_cd.csv

tests/data/mf2022_fig14_15_local_cd.csv, 37 rows.

Field	Value
source	Moe Foere H, Endresen PC, Bjelland HV (2022), J. Offshore Mech. Arct. Eng. 144(4) 041301 (MF2022)
location	Fig. 14 (theta = 0, PDF p. 7) and Fig. 15 (theta = 45 deg, PDF p. 7); plateau values text-stated on PDF p. 7
kind	digitised
uncertainty	cd_local +-0.015, rn +-30 (marker centres from the embedded raster figures, 1 px = 0.0024 in Cd and 7.2 in Rn)
units	snm [-], theta_deg [deg], rn [-], cd_local [-]
notes	cd_local is MF2022 Eq. 9, C_d = F_D / (0.5 rho A U^2) * 4 (1 - Snm)^2 / (Snm (1 + r)^2), with r from Eq. 11; Rn = U t / nu with the undisturbed U (Eq. 4).
notes	Only points with Rn >= 1000 whose marker is fully or almost fully visible are included: the Rn < 1000 region and the clusters near Rn 1880-2000 and 2500 (several nets overlap) are omitted. N19a and N26a (t = 0.7 mm) have no Rn >= 1000 point that is clear of other markers.
notes	Text-stated (PDF p. 7), not rows: "the drag coefficient appears close to constant for Rn \> 1500, with an average value of approximately 0.8" (theta = 0, N33a higher than the others); for theta = 45 deg "for Rn \> 1000, the drag coefficients for all inclined nets are close to constant with an approximate value of 0.5".
notes	Nets by Snm: 0.364 N36a, 0.331 N33a, 0.328 N33b, 0.257 N26b, 0.199 N20b, 0.185 N18b (Table 2). Digitised by WP-A1 (axes calibrated on the grid lines; marker class from fill, shape and grey level).

snm	theta_deg	rn	cd_local
0.331	0	1010	0.997
0.331	0	1500	0.953
0.331	0	2010	0.924
0.331	0	2700	0.926
0.331	0	3510	0.865
0.364	0	1120	0.881
0.364	0	1500	0.852
0.364	0	2620	0.758
0.328	0	1630	0.837
0.328	0	2270	0.808
0.257	0	3000	0.819
0.257	0	3510	0.812
0.257	0	4000	0.794
0.199	0	2510	0.801
0.199	0	3130	0.786
0.199	0	3750	0.786
0.199	0	5000	0.751
0.185	0	3130	0.855
0.185	0	3750	0.843
0.185	0	5000	0.830
0.331	45	2000	0.513
0.331	45	2700	0.519
0.331	45	3510	0.501
0.364	45	1130	0.495
0.364	45	1880	0.494
0.364	45	2620	0.471
0.328	45	1630	0.526
0.328	45	2280	0.512
0.257	45	3000	0.536
0.257	45	4000	0.536
0.199	45	2500	0.493
0.199	45	3130	0.490
0.199	45	3750	0.494
0.199	45	5000	0.487
0.185	45	3130	0.522
0.185	45	3750	0.526
0.185	45	5000	0.521

zhan2006_planar_tables1-3.csv

tests/data/zhan2006_planar_tables1-3.csv, 12 rows.

Field	Value
source	Zhan JM, Jia XP, Li YS, Sun MG, Guo GX, Hu YZ (2006), Analytical and experimental investigation of drag on nets of fish cages, Aquacultural Engineering 35, 91-101 (Zhan 2006)
location	Tables 1-3, planar net drag (journal pp. 95-96, PDF pp. 5-6)
kind	tabulated
uncertainty	as published (values copied exactly); balance error < 5 %, frame-interaction error < 3 % (Zhan §2); each test repeated twice
units	s [-], d_mm [mm], dl_mm [mm], v_m_s [m/s], r0_N [N], r30_N [N], r60_N [N]
notes	Planar nylon net 1.3 x 0.7 m on a rigid frame of 20 mm steel bars (Fig. 1a); R0, R30, R60 are the net drag along the towing direction at theta = 0, 30, 60 deg between panel normal and flow, frame drag subtracted. Rows: Table 1 (s 0.223), Table 2 (s 0.128), Table 3 (s 0.215).
notes	s = 2d/dl as defined by Zhan (no knot term); the tests use Sn = s at K = 1 (lead ruling R2); K = 1.16 is reported only. The 0.25 m/s row of Table 2 has R30 > R0, a sign of noise (plan L8: reported, not asserted).

s	d_mm	dl_mm	v_m_s	r0_N	r30_N	r60_N
0.223	1.45	13	0.25	11.77	9.52	5.89
0.223	1.45	13	0.50	38.26	31.49	19.33
0.223	1.45	13	0.75	82.89	63.57	45.13
0.223	1.45	13	1.00	145.68	120.17	84.37
0.128	0.8	12.5	0.25	6.38	8.34	3.43
0.128	0.8	12.5	0.50	20.11	15.50	8.14
0.128	0.8	12.5	0.75	43.65	29.43	19.82
0.128	0.8	12.5	1.00	76.52	59.35	39.34
0.215	0.7	6.5	0.25	11.28	9.81	4.12
0.215	0.7	6.5	0.50	38.26	29.04	14.42
0.215	0.7	6.5	0.75	78.48	57.39	34.34
0.215	0.7	6.5	1.00	138.81	112.32	66.22