# Pitching and Plunging problem in SU2

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 July 1, 2015, 07:05 Pitching and Plunging problem in SU2 #1 New Member   Albin Johny Join Date: Oct 2014 Location: India Posts: 11 Rep Power: 11 I am trying to do a Pitching and plunging case of an airfoil in SU2. The plunging works properly but the pitching motion is not occuring. The DYNAMIC MESH DEFINITION I have used is shown below % ----------------------- DYNAMIC MESH DEFINITION -----------------------------% % % Mesh motion for unsteady simulations GRID_MOVEMENT= YES % % Type of mesh motion GRID_MOVEMENT_KIND= RIGID_MOTION % % Marker(s) of moving surfaces (MOVING_WALL or DEFORMING grid motion) MARKER_MOVING= airfoil % % Mach number (non-dimensional, based on the mesh velocity and freestream vals.) MACH_MOTION= 0.3 % % Coordinates of the rigid motion origin MOTION_ORIGIN_X= 0.5 MOTION_ORIGIN_Y= 0.0 MOTION_ORIGIN_Z= 0.0 % % Translational velocity (m/s) in the x, y, & z directions (RIGID_MOTION only) TRANSLATION_RATE_X = 0.0 TRANSLATION_RATE_Y = 0.0 TRANSLATION_RATE_Z = 0.0 % % Angular velocity vector (rad/s) about x, y, & z axes (RIGID_MOTION only) ROTATION_RATE_X = 0.0 ROTATION_RATE_Y = 0.0 ROTATION_RATE_Z = 0.0 % % Pitching angular freq. (rad/s) in x, y, & z directions (RIGID_MOTION only) PITCHING_OMEGA_X= 0.0 PITCHING_OMEGA_Y= 183.6 PITCHING_OMEGA_Z= 0.0 % % Pitching amplitude (degrees) in x, y, & z directions (RIGID_MOTION only) PITCHING_AMPL_X= 0.0 PITCHING_AMPL_Y= 20.0 PITCHING_AMPL_Z= 0.0 % % Pitching phase offset (degrees) about x, y, & z axes (RIGID_MOTION only) PITCHING_PHASE_X= 0.0 PITCHING_PHASE_Y= 90 PITCHING_PHASE_Z= 0.0 % % Plunging angular freq. (rad/s) in x, y, & z directions (RIGID_MOTION only) PLUNGING_OMEGA_X= 0.0 PLUNGING_OMEGA_Y= 183.6 PLUNGING_OMEGA_Z= 0.0 % % Plunging amplitude (m) in x, y, & z directions (RIGID_MOTION only) PLUNGING_AMPL_X= 0.0 PLUNGING_AMPL_Y= 1.0 PLUNGING_AMPL_Z= 0.0 %------------------------------------------------------------------------------------------------------% Can anyboby please help me to sort the problem Any suggessions are Welcome.

 July 5, 2015, 01:54 #2 New Member   Albin Johny Join Date: Oct 2014 Location: India Posts: 11 Rep Power: 11 I got the solution to the problem. And my pitching is coming properly. But now i am facing a new problem ie when I put omega of 102 the pitching occurs and if i increase the omega to 122 it diverges can anybody help me

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