I am simulating condensation of water vapor in a vertical, square minichannel with VOF - modified HRIC, steady state, SIMPLE method and 3rd order MUSCL for energy, momentum and turbulence equations. I am having "turbulent viscosity ratio limited to.." and "temperature limited to ...". I am also encountering convergence issues with temperature AMG and sometimes VOF-1 AMG. Can anyone help or advice? Thank you
Am not getting u completely....Can u elaborate simply wat is t need ?
I am having the condensate film in the tube. But, my steady simulations diverges after some iterations. Fluent says "Divergence detected in AMG Solver: temperature" and/or "Divergence detected in AMG Solver: VOF-1". During the simulations, I keep on having "temperature limited to.." and "turbulent viscosity limited to ...". Could you please advice how to proceed or solve this divergence issue? Thank you in advance.
you may consider more refinement of your grid, smaller time steps, and other speed up convergence look at CFD froum
Hello Ahmad,
Thanks for the reply. I have tried refining my mesh. But still it diverges. The skewness of my mesh is 0 and orthogonal is 1, so i think the mesh is good. I have tried decreasing the URFs. But no hope. I can't understand why it diverges. Do you have any idea? Thank you
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