Learning Forum

[naoya708]

Hello

I'm doing 2D, laminar, image-like analysis.

The boundary condition is that the upper wall is a moving wall at 1 m/s and the lower wall is a stationary wall. There are pressrue inlets on the left and right, and the gauge pressure is 0 Pa. Operation pressure is the default.

Initialization does not repeat in this state. But the calculation can be performed

Looking at the velocity vector in this state, the stationary wall, which should have a velocity of 0, has velocity. Is this correct?

By the way, the moving wall was able to confirm a constant velocity vector.

Please tell me.

 

Thank you

[Rob]

Probably, it would depend on how narrow the gap is between the walls and whether the mesh is any good. 

[naoya708]

Thank you for your reply.

I intended to attach a photo of the mesh diagram, but it didn't work. I'll post it again. Can you see it?

The distance between walls is 6 micro in the long and 1 micro in the short. Double precision is turned on at the fluent lancher stage.

Is the mesh right?

 

 

Thank you