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Moving mesh vs convergence
Posted 31 mar 2018, 07:08 GMT-4 General, Heat Transfer & Phase Change, Mesh Version 5.3a 0 Replies
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Hi I simulate heat transfer in a cylinder with a moving boundary and a constant external source. The velocity of the boundary is a function of the local temperature and the coordinates (x, y). With a significant change in the initial geometry, the model collapses (convergence is not achieved). I do not understand the reason yet. However, first of all I want to understand how the fineness of the mesh affects the convergence.
When I generate a mesh, I select option Physics-controlled Mesh. I expect that: when using a finer mesh, the collapse comes later. However, for "Fine" mesh, collapse occurs about twice as late as for "Finer" mesh (which contains about three times more elements).
So, how can it be? Thank you for support !
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Hello Yuri Skorov
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