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Problem in Optimization by global least squares objective

Posted 09.12.2014, 14:44 GMT-5 Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3 0 Replies

Makram Obied
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Hi sirs, that is my first contribution in COMSOL discussion forum. I'm simulating an adsorption process of water vapour in silica gel grains. the model is working very good when I enter fixed value of mass diffusion coefficient. But, when I use the optimization module (global least squares objective) to extract the best value of the diffusion coeff to do good fitting to the simulation results with my experimental data , I got very bad fitting and optimized value of the diffusion coeff equal to the intial value which I enterd in the optimization module (No optimization occurred). My research stopped due to this problem, please help me.
0 Replies Last Post 09.12.2014, 14:44 GMT-5
COMSOL Moderator

Hello Makram Obied

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