Moving Mesh with Ansa File

Paul1985 · August 19, 2009, 05:20

Hallo

I have Problem with moving mesh. I am simmulating a dynamic Problem where one Part ist moving.

First I have simmulated the Problem without moving. I generated the geometry with snappyhexmesh.

The Problem is that I have no idea in building the gemometry, where one imported stl File ist moving and the other will be static. I haven´t found a tutorial file that build the geometry with an stl file with a dynamic mesh.

Thanks for your help

henrik · August 20, 2009, 02:13

Sebastian,

in principal, the dynamic mesh motion algorithmn does not care where the mesh comes from. Just specify the velocities of the boundaries and solve for the vertex positions withing the domain.

http://powerlab.fsb.hr/ped/kturbo/Op...Manuscript.pdf

Of course, this has limitations when it comes to large displacements in which case you need to reconsider the initial mesh topology and/or topological changes. See here:

http://powerlab.fsb.hr/ped/kturbo/Op...h_AIAA2009.pdf

Henrik

August 19, 2009, 05:20	Moving Mesh with Ansa File	#1
Paul1985 New Member Join Date: Aug 2009 Posts: 1 Rep Power: 0	Hallo I have Problem with moving mesh. I am simmulating a dynamic Problem where one Part ist moving. First I have simmulated the Problem without moving. I generated the geometry with snappyhexmesh. The Problem is that I have no idea in building the gemometry, where one imported stl File ist moving and the other will be static. I haven´t found a tutorial file that build the geometry with an stl file with a dynamic mesh. Thanks for your help

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August 20, 2009, 02:13		#2
henrik Senior Member Henrik Rusche Join Date: Mar 2009 Location: Wernigerode, Sachsen-Anhalt, Germany Posts: 281 Rep Power: 18	Sebastian, in principal, the dynamic mesh motion algorithmn does not care where the mesh comes from. Just specify the velocities of the boundaries and solve for the vertex positions withing the domain. http://powerlab.fsb.hr/ped/kturbo/Op...Manuscript.pdf Of course, this has limitations when it comes to large displacements in which case you need to reconsider the initial mesh topology and/or topological changes. See here: http://powerlab.fsb.hr/ped/kturbo/Op...h_AIAA2009.pdf Henrik