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Arc heating of metal ingot

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I use COMSOL to simulate the arc heating of metal ingot,first study 1 with stationary study,the solution has quickly obtained, however on the study 2 with time dependent by using stationary solution 1 as initial value ,the compution can not converge, with error message of Feature: Time-Dependent Solver 1 (sol2/t1),Nonlinear solver did not converge. Maximum number of Newton iterations reached. Time: 6.2499999999999952e-07 s. I have tried with different time steps and mesh sizes, however, the error of not converge still happens. A mph file with solution cleared is attached for reference.


0 Replies Last Post 2023年5月3日 GMT-4 06:35
COMSOL Moderator

Hello Shuang Shii Lian

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