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failed to find a solution and singular matrix

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Hi, I am new to comsol and I am trying to do a thermal analysis in a structure. When I simulate it, it gives me the following error. Does anyone can help me? - Feature: Stationary Solver 1 (sol1/s1) Failed to find a solution. Segregated Step 1 Singular matrix.

There are 1 void equations (empty rows in matrix) for the variable comp1.ec.term1.I0_ode. at coordinates: (0,0,0), ... There are 1 void equations (empty rows in matrix) for the variable comp1.ec.term2.I0_ode. at coordinates: (0,0,0), ... and similarly for the degrees of freedom (empty columns in matrix). In Segregated Step 1: Returned solution is not converged. Not all parameter steps returned.



0 Replies Last Post May 30, 2018, 3:24 p.m. EDT
COMSOL Moderator

Hello Deli G

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