Steady simulations
For steady simulations, the APM Solver assumes that the wake is a flat surface that extends to infinity. The following options in the .conf file are changed:
dt- the timestep size in secondsN_timesteps- the number of timesteps
The dt option must be such as to allow the wake to extend at least 100 chord lengths downstream in direction of the flow. If the airspeed is norm_V_ref=10 m/s and the c_ref=1 m, dt should be approximately 1000 s. In addition, N_timesteps should be set to 1.
The values for airspeed and chord are arbitrary and are used for illustrative purposes.
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