Wake
The APM Solver has several options for controlling the wake. The wake_alignement
option in the .conf file controls the alignment of the wake with respect to the trailing edge.
By default the
wake_alignement
option is set to 0. The wake will be aligned with the freestream velocity vector at the trailing edge.If the
wake_alignement
option is set to 1 the wake will be aligned with the average trailing edge bisector. The average trailing edge bisector is calculated from the normal vectors of the trailing edge elements.
Use the average trailing angle bisector option for best results.
The images below show the wake of a NACA4412 wing aligned with the freestream velocity vector and with the average trailing edge bisector.
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