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Issue with Laminar Flow in 2D Axisymmetric Model Depending on Inlet and Outlet Positions
Posted 2025年4月27日 GMT+8 15:42 Plasma Physics, Fluid & Heat, Mesh Version 6.2 0 Replies
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Hello,
I am working on a 2D-axisymmetric model using the Laminar Flow module in COMSOL, coupled with the Plasma and Heat Transfer modules.
I have noticed an issue: when the inlet and outlet are positioned far apart or diagonally across from each other (see the first image), the simulation fails and throws errors. However, when I place the inlet and outlet closer together (as shown in the second image), the simulation runs successfully without any problems.
Based on my observations, I suspect that the issue might be related to mesh quality. I tried refining and adjusting the mesh multiple times, but the simulation still does not converge when the inlet and outlet are distant.
Is this a known issue when coupling Plasma and Heat Transfer with fluid flow in a 2D-axisymmetric setup? Or is there a recommended strategy for meshing or modeling when the inlet and outlet are positioned far apart?
Any advice or tips would be greatly appreciated. Thank you very much!
Hello Gwan Kim
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