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Need help: COMSOL Optimizer under different components

Posted 11 janv. 2018, 14:53 UTC−5 Chemical, Chemical Reaction Engineering, Optimization Version 5.2a 0 Replies

Gary Xing
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Hello,

I am having trouble using the COMSOL optimization module to solve for a kinetic parameter in a converged model while fitting measured data.

I have a converged model with a 1D fluid phase component and a 2D particle/porous component set up. I am trying to optimize a parameter under the particle component to fit experimental data measured under the fluid phase component.

I set up the optimizer least square objectives with attached data csv file under the fluid phase component and the global control variable for the parameter desired to be optimized. I run into an error message **“Undefined function at the initial point. Returned solution is not converged”. **

Has anyone done anything similar to this? Am I missing something setting it up or attaching the data?

Thanks,

Gary

0 Replies Last Post 11 janv. 2018, 14:53 UTC−5
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Hello Gary Xing

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