Beta sweep of a simple wing with negative dihedral using panel method
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Tobias Sugandi
Oct 28, 2022, 10:51:07 AM10/28/22
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Hello everyone,
I am doing a beta sweep analysis on a simple wing with -5 degree of dihedral (.vsp3 file attached). In the perspective of flow in the lateral (y-direction) the negative dihedral should act like a camber effect which increases lift as the side-slip angle (beta) increases.
However, panel method gives a concave lift profile with respect to beta (the lift decreases as beta increases). I tried to increase and decrease the number of panels but the CL profiles trends are still the same (concave).
I tried to do the same simulation with VLM and it gives correct convex lift profile.
Any suggestions would be much appreciated. Thank you very much in advance!
I am doing a beta sweep analysis on a simple wing with -5 degree of dihedral (.vsp3 file attached). In the perspective of flow in the lateral (y-direction) the negative dihedral should act like a camber effect which increases lift as the side-slip angle (beta) increases.
However, panel method gives a concave lift profile with respect to beta (the lift decreases as beta increases). I tried to increase and decrease the number of panels but the CL profiles trends are still the same (concave).
I tried to do the same simulation with VLM and it gives correct convex lift profile.
Any suggestions would be much appreciated. Thank you very much in advance!
Tobias Sugandi
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