Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Error while solving stiff problems in COMSOL 5.3
Posted 2021年1月29日 GMT-5 15:15 General, Studies & Solvers, Equation-Based Modeling Version 5.3 0 Replies
Please login with a confirmed email address before reporting spam
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
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.