thank you for your suggestions sir. i have a doubt. since model attached to the above question has run on the above mentioned transient structural and thermal analysis settings (as attached in images). i thought that it will run for larger heat input also. but it is showing convergence error of highly distorted elements. As you suggested to decrease time step, does this mean that meshing and other analysis parameter depends on heat input that i am giving? if i have run a model on particular settings and meshing, do i have to change it if i am increasing heat input?
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