What kind of mesh deformation method is used in SU2?

denghong · August 6, 2024, 11:24

Hello friends:
I am using the SU2 to simulate a pitching airfoil .
And i find the corresponding .cfg file write:
% ----------------------- DYNAMIC MESH DEFINITION -----------------------------%
%
GRID_MOVEMENT= RIGID_MOTION
MOTION_ORIGIN= (0.25 0.0 0.0)
PITCHING_OMEGA= (0.0 0.0 14.91675)
PITCHING_AMPL= (0.0 0.0 8.0)

Now i want to know what kind of mesh deformation method is used
and how can i edit the corresponding source code about it?
Thanks.

giovanni.medici · August 19, 2024, 05:36

Dear denghong,

I'd say that the source code snippet that you provided refers to rigid motion, so basically it is a rigid transformation (in this case a sinusoidal rotation around the MOTION_ORIGIN, with the specified amplitude and omega).

Although, as you are specifying it, it is "pitching" around the Z axis.

August 6, 2024, 11:24	What kind of mesh deformation method is used in SU2?	#1
denghong New Member denghong Join Date: May 2024 Posts: 10 Rep Power: 2	Hello friends: I am using the SU2 to simulate a pitching airfoil . And i find the corresponding .cfg file write: % ----------------------- DYNAMIC MESH DEFINITION -----------------------------% % GRID_MOVEMENT= RIGID_MOTION MOTION_ORIGIN= (0.25 0.0 0.0) PITCHING_OMEGA= (0.0 0.0 14.91675) PITCHING_AMPL= (0.0 0.0 8.0) Now i want to know what kind of mesh deformation method is used and how can i edit the corresponding source code about it? Thanks.

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August 19, 2024, 05:36		#2
giovanni.medici Member Giovanni Medici Join Date: Mar 2014 Posts: 48 Rep Power: 12	Dear denghong, I'd say that the source code snippet that you provided refers to rigid motion, so basically it is a rigid transformation (in this case a sinusoidal rotation around the MOTION_ORIGIN, with the specified amplitude and omega). Although, as you are specifying it, it is "pitching" around the Z axis.