HelicoidalWake

class sharpy.generators.helicoidalwake.HelicoidalWake

Helicoidal wake shape generator

HelicoidalWake class inherited from BaseGenerator

The object creates a helicoidal wake shedding from the trailing edge based on the time step dt, the incoming velocity magnitude u_inf, direction u_inf_direction, the rotation velocity rotation_velocity and the shear parameters

The settings that this solver accepts are given by a dictionary, with the following key-value pairs:

Name	Type	Description	Default
u_inf	float	Free stream velocity magnitude	None
u_inf_direction	list(float)	x, y and z relative components of the free stream velocity	None
dt	float	Time step	None
dphi1	float	Size of the first wake panel in radians	-1.0
ndphi1	int	Number of panels with size dphi1	1
r	float	Growth rate after ndphi1 panels	1.0
dphimax	float	Maximum panel size in radians	-1.0
shear_direction	list(float)	x, y and z relative components of the direction along which shear applies	numpy.array
shear_exp	float	Exponent of the shear law	0.0
h_ref	float	Reference height at which u_inf is defined	1.0
h_corr	float	Height to correct the shear law	1.0
rotation_velocity	list(float)	Rotation velocity	None