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Error while solving stiff problems in COMSOL 5.3
Posted 29 janv. 2021, 15:15 UTC−5 General, Studies & Solvers, Equation-Based Modeling Version 5.3 0 Replies
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Hi,
So I am trying to solve a stiff problem using Global ODEs and DAEs. The problem has 32 differential equations and I have inserted all the initial values correctly, however, I keep getting this error. - Feature: Time-Dependent Solver 1 (sol1/t1) Failed to find consistent initial values. Attempt to evaluate real logarithm of negative number. Last time step is not converged.
The same problem I solved using MATLAB ODE15s solver and with the same set of initial conditions. May I know why can't I solve it using COMSOL.
Thank you very much in advance!
Best regards, Shannon
Hello Shannon Fernandes
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