[ahmad_xjtu]

hello seniors,
I am doing a heat transfer analysis on a surface that has walls at its edges at 60degree.
previously I had performed the same at30 and 40 degrees and faces no such issues.
When Iran fluent calculation it diverges after 50 iterations. (usually takes 200 iterations for convergence in other cases). After some research, I found that the mesh quality under the angel tab is low, especially in the region of high interest.
Pics are attached herewith, would appreciate if someone can give provide some solution.
I tried further splitting, moves the vertices and smoothing options but all these further deteriorate the situation.