[ChristianF]

Hello,

I want to calculate the flow in a rotary piston engine (for expanding gases). thats for I got to use the Remeshing option in ANSYS CFX. In CFX Pre there are two possibilitys for Remeshing:

1. Remeshing with ICEM CFD

this is not possible thince the movement is a rotating one (in the manuel it is explained that only translational moments are supported and in first tests it seems to be true)

2. Remeshing with User Defined options

In this option I got to do the different meshes in front of the calculation. In CFX Pre i've got to tell the programm where are the meshes and when to use which mesh.

so does anyone have a example for the second option since I don't know how the scripting files have to look like.

thank you for your help

Christian (TU Dresden)

[ghorrocks]

There was an example in I think CFX V11 which used pre-defined meshes to do mesh motion. It was removed in V12 as the technique was largely superseded. So try to get hold of the old V11 tutorial examples. You will probably have to talk to support about this.

[gwen520]

Originally Posted by ChristianF

Hello,

I want to calculate the flow in a rotary piston engine (for expanding gases). thats for I got to use the Remeshing option in ANSYS CFX. In CFX Pre there are two possibilitys for Remeshing:

1. Remeshing with ICEM CFD

this is not possible thince the movement is a rotating one (in the manuel it is explained that only translational moments are supported and in first tests it seems to be true)

2. Remeshing with User Defined options

In this option I got to do the different meshes in front of the calculation. In CFX Pre i've got to tell the programm where are the meshes and when to use which mesh.

so does anyone have a example for the second option since I don't know how the scripting files have to look like.

thank you for your help

Christian (TU Dresden)

have you solve that problem, recently, I have met the same problem, could you offer your help