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November 4, 2010, 17:07 |
Rotating plate.
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#1 |
New Member
Farzan
Join Date: Nov 2010
Posts: 3
Rep Power: 15 |
Hi everyone,
I'm trying to model two rotating discs with some radial plates between them, with axial flow. The picture shown here: Inlet mass flow is used in the bottom, outlet pressure in the end and rotational periodic in each side. All the walls are rotating around the x axis. I have no problem with modeling just two rotating discs but when I add the radial plate to the geometry, I get this error at the the first step of solver. | ERROR #002100080 has occurred in subroutine CHECK_NORMV. | Message: | The specified velocity vector on the boundary patch | | | Default Domain Default | | | has a significant normal component at one or more faces. One of | these face locations is | (x,y,z) = ( 4.43340E-03, 3.68905E-02, 5.00000E-04). | The angle between the specified velocity and the element surface is | 89.217 degrees at this face. This is considered an error because | it implies that the mesh is moving. The following are possible | reasons for the error message: | 1. There is a setup error; for example, an incorrect axis of | rotation. | 2. There may be a meshing problem; for example, the nodes on a | rotating surface might not lie on the surface of revolution. 3. The boundary is curved and the mesh is very coarse. In this | case, you may increase the tolerance for this check by | increasing the expert parameter 'tangential vector tolerance' | from its default of 20 degrees. The location (x,y,z) refers to the a point at the end of the plate. P.S. I refined the mesh in that spot but it didn't work. Last edited by farrr; November 4, 2010 at 17:30. |
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