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-   -   Moving mesh capability in CCM+ (http://www.cfd-online.com/Forums/cd-adapco/56621-moving-mesh-capability-ccm.html)

RGB May 15, 2008 11:07

Moving mesh capability in CCM+
 
Hi

Does anybody know what moving mesh capability is available in the latest version of CCM+?

R

Goulash May 15, 2008 15:16

Re: Moving mesh capability in CCM+
 
you still have sliding grid with rigid body motion: translation or rotation.

Luke May 16, 2008 03:55

Re: Moving mesh capability in CCM+
 
Star CCM+ currently has no moving mesh capabilities but it is being updated evry few of months

Will May 16, 2008 14:20

Re: Moving mesh capability in CCM+
 
Goulash is right, Luke is wrong. There is rigid body (rotating) motion as well as complete domain motion for stuff like sloshing etc

Luke May 16, 2008 22:36

Re: Moving mesh capability in CCM+
 
Sorry. My bad...

Jayson May 17, 2008 16:43

Re: Moving mesh capability in CCM+
 
I've been currently using Star CCM+'s ability to replace a mesh and map the solution to account for motion.

I created a VBA macro for Solidworks that generated all of my geometries automatically based on parameters of the problem.

Then I created a java macro that would open each one of the geometries in Star CCM+, create the mesh, and export the mesh.

Next I created a java macro that would first define paramaters of the problem (such as times step, number of iterations, etc.), iterate on one mesh, and then replace it with a new mesh for the next timestep.

For the problem I was solving the flow was caused by the motion of one flat plate relative to a stationary plate, so to account for this a field function was created that would define a volumetric source term based at each timestep.

I have compared my results to a first-order analytical solution, and the results agree very well.

Jayson Martinez

Jayson May 17, 2008 16:46

Re: Moving mesh capability in CCM+
 
Also, in the Java API there is something called Star Morpher, which makes references to moving meshes, but is not very well documented. If anybody has any idea how to use this I would be very interested in finding out how.

Jayson Martinez


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