[Other] Mesh movement to simulate vibration/oscillation of a flat plate

Thangam · July 10, 2014, 06:13

Hi,

I have used the oscillatingFixedValue bc to simulate a vibrating wall (with known frequency and amplitude) with some success. However now I dont want to use wall velocities any more and interested in moving the mesh to simulate the same. The case is a simple 3D box where I want the bottom face/plate of the box to vibrate with fixed frequency and amplitude. Any ideas/ tuts similar to the case? do i use slidinginterface? 6DoF?

Thanks.

sdequeir · July 14, 2014, 17:31

I have a very similar question and am curious whether you are attempting to model your motion with a moving shape inside of a mesh domain (so like a deforming mesh) or a sliding mesh with a fixed shape inside of it. I am trying to model an airfoil oscillating in an airflow and have been told that it must be done using a sliding mesh for accuracy purposes. Love to hear anyone's feedback on either of these questions

lillberg · August 13, 2014, 04:42

Look at pimpleDyMFoam/movingCone tutorial and apply oscillatingFixedValue to applicable pointMotion field in your setup

July 10, 2014, 06:13	Mesh movement to simulate vibration/oscillation of a flat plate	#1
Thangam Member Thangam Natarajan Join Date: Dec 2010 Location: Perth Posts: 70 Rep Power: 16	Hi, I have used the oscillatingFixedValue bc to simulate a vibrating wall (with known frequency and amplitude) with some success. However now I dont want to use wall velocities any more and interested in moving the mesh to simulate the same. The case is a simple 3D box where I want the bottom face/plate of the box to vibrate with fixed frequency and amplitude. Any ideas/ tuts similar to the case? do i use slidinginterface? 6DoF? Thanks.

July 14, 2014, 17:31	Similar Question	#2
sdequeir New Member Anonymous Join Date: Jul 2014 Posts: 1 Rep Power: 0	I have a very similar question and am curious whether you are attempting to model your motion with a moving shape inside of a mesh domain (so like a deforming mesh) or a sliding mesh with a fixed shape inside of it. I am trying to model an airfoil oscillating in an airflow and have been told that it must be done using a sliding mesh for accuracy purposes. Love to hear anyone's feedback on either of these questions

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August 13, 2014, 04:42		#3
lillberg Member Eric Lillberg Join Date: Mar 2009 Location: Stockholm Posts: 80 Rep Power: 17	Look at pimpleDyMFoam/movingCone tutorial and apply oscillatingFixedValue to applicable pointMotion field in your setup