StraightWake¶
- class sharpy.generators.straightwake.StraightWake[source]¶
Straight wake shape generator
This generator creates a straight wake shedding from the trailing edge based on the time step
dt
, the incoming velocity magnitudeu_inf
and directionu_inf_direction
. It is to be used aswake_generator
inA wake where panels grow downstream is supported by using the settings
dx1
,ndx1
,r
anddxmax
as described below. Note that the wake will always havem_star
panels, as specified inAerogridLoader
, thus these settings will modify the effective length of the wake. Once the maximum size of paneldxmax
is achieved, all panels are sizedxmax
thereinafter untilm_star
panels are created.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
1.0
u_inf_direction
list(float)
x
,y
andz
relative components of the free stream velocitynumpy.array
dt
float
Time step
0.1
dx1
float
Size of the first wake panel
-1.0
ndx1
int
Number of panels with size
dx1
1
r
float
Growth rate after
ndx1
panels1.0
dxmax
float
Maximum panel size
-1.0