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validate virtual work method with maxwell stress tensor for non-linear BH
Posted Dec 7, 2016, 5:59 p.m. EST Low-Frequency Electromagnetics 0 Replies
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Has anyone had any success in comparing the magnetic force derived from the virtual work method (using sensitivity analysis) and Maxwell stress tensor (the build in method) using AC/DC module that involves non-linear magnetic materials.
The force I got for models do not involve non-linear magnetic material agrees well. But once I put non-linear material in, and when the co-energy in the non-linear material is not small, the results from the above two methods differ hugely.
Any suggestions ?
I read a thread posted 6 years ago stating a similar problem. Has anything been changed since ?
www.comsol.com/community/forums/general/thread/9748/
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Hello Ning Zhang
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