Public Attributes
double	a3 = 0.0
	Third drag harmonic, KF2012 Eq. 14; 0 is the first-harmonic model.

double	b4 = 0.0
	Fourth lift harmonic, KF2012 Eq. 14; 0 is the first-harmonic model.

bool	useInduction = false
	Apply f = (1 + r) / 2 of MF2022 Eqs. 7 and 11.

Detailed Description

Parameters of the ScreenKF2012 law (plan contract C2).

With the defaults this is KF2012 as published, fed the free-stream velocity:

Re = |U| t / (nu (1 - Sn)), KF2012 Eq. 11 (p. 223);
cd = C_D,cyl(Re) Sn (2 - Sn) / (2 (1 - Sn)^2), KF2012 Eqs. 9 and 10 (pp. 222-223);
cl from cd by KF2012 section 2.5.1 (p. 223);
C_D(theta) = cd (a1 cos(theta) + a3 cos(3 theta)), C_L(theta) = cl (b2 sin(2 theta) + b4 sin(4 theta)), KF2012 Eq. 14 (p. 223), with a1 = 1 - a3 and b2 = 1;
F = 1/2 rho A |U|^2 (C_D U-hat + C_L L-hat), KF2012 Eq. 1 and Fig. 3 (p. 221);
plus the in-plane twine friction of TwineCrossFlow when the netting has bar data, so that the load is not zero for flow along the panel (TwineFriction.h, MARE-0111).

useInduction = true applies the MF2022 induction factor as LocalThroughFlow does, which makes ScreenKF2012{a3, b4, true} equal to LocalThroughFlow{a3, b4}.

The documentation for this struct was generated from the following file:

Public Attributes