Train in a tunnel with CFX
could someone tell me if it is possible to simulate the flow around a train in a tunnel. In Star/Fluent I would use the "death and birth" feature. Unfortunatly I couldn't find something like this in the cfx tutorials.The ballvalve tut and similar are not approriate. I need a feature where i can switch from solid to fluid from one timestep to another in combination with moving mesh and the possibility of adding and removing cells in front/after the train. Otherwise the moving part of the mesh would move outside the tunnel.
Thx in Ad.
Yes, it is possible. CFX does not support cell death and birth. You could do this using immersed solids (which is very similar in effect to death and birth), or using a GGI interface to "slide" the train into the tunnel.
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