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_alignementoption is set to 0. The wake will be aligned with the freestream velocity vector at the trailing edge. - If the
wake_alignementoption 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. - If the
wake_alignementoption is set to 2 the wake will be positioned at a specific angle with respect to theplane. Thewake_angleoption in the .conf file can be used to specify the angle. If you do not specify an angle a default value of 0 deg will be assumed.
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.
Wake aligned with the freestream flow
Wake aligned with the average trailing edge bisector
Last modified 2yr ago