Mesh motion for flapping airfoil

278379rea · June 16, 2016, 10:15

Hello Foamers,

I am trying to use dynamic mesh to research flapping airfoil in sine pattern. I have chose the pimpleDyMFoam solver and now I have two questions.

1)I want to define a new boundaryfield of pressure in wall but I have no experience of it. Can someone give me teaching? I want to describe the equation in the new boudaryfield:

ay、w、r is changing with time, I am confused how to define it..

2)In the pointMotionU, I think the velocity of mesh should be equal to the airfoil. And I set the type of wall boundaryfield as timeVaryingUniformFixedValue. I want some guide of timeVaryingUniformFixedValue. I know it need extra files to know the velocity, but how can I give the velocity.dat?

278379rea · June 16, 2016, 23:46

anyone can help me?

278379rea · June 19, 2016, 04:55

up and wait

June 16, 2016, 10:15	Mesh motion for flapping airfoil	#1
278379rea New Member Hong Join Date: Jun 2016 Posts: 7 Rep Power: 9	Hello Foamers, I am trying to use dynamic mesh to research flapping airfoil in sine pattern. I have chose the pimpleDyMFoam solver and now I have two questions. 1)I want to define a new boundaryfield of pressure in wall but I have no experience of it. Can someone give me teaching? I want to describe the equation in the new boudaryfield: ay、w、r is changing with time, I am confused how to define it.. 2)In the pointMotionU, I think the velocity of mesh should be equal to the airfoil. And I set the type of wall boundaryfield as timeVaryingUniformFixedValue. I want some guide of timeVaryingUniformFixedValue. I know it need extra files to know the velocity, but how can I give the velocity.dat?

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June 16, 2016, 23:46		#2
278379rea New Member Hong Join Date: Jun 2016 Posts: 7 Rep Power: 9	anyone can help me?

June 19, 2016, 04:55		#3
278379rea New Member Hong Join Date: Jun 2016 Posts: 7 Rep Power: 9	up and wait