Hello, I used Mathematics>PDE interfaces in comsol. I specified parameters and then I wrote degradation formula in variables part and so on.
At the end, when I pressed "compute", I got this error :
-Unknown function or operator
-Name:b
-Feature:Time-Dependent Solver1 (sol1/t1)
-Error:Unknown Function or operator
I attached the file here.
Thank you so much for your help
Hossein Daneshpajooh
Popular answer
Dear Shima,
You have forgotten the times sign (*) in da (damping or mass coefficient)
-a*b*(Rs/Ce0)^(b-1)
I hope it'll work!
4 votes
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Hossein Daneshpajooh
Dear Shima,
You have forgotten the times sign (*) in da (damping or mass coefficient)
-a*b*(Rs/Ce0)^(b-1)
I hope it'll work!
4 votes
3 thanks
Shima Doorandish
Thank you so much dear Hossein , I was really confused.
Yes , it works .
Thanks a lot.
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