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Finding magnitude of a vector for use in an analytic function
Posted May 13, 2023, 7:35 a.m. EDT Modeling Tools & Definitions, Equation-Based Modeling, Modeling Workflow Version 5.0 1 Reply
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Hello,
I am hoping someone might be able to help me write an expression for the magnitude of an electric field. The electric potential is solved in the electrostatics module. I am using a 2D axisymmetric model. I hoope to implement this operator in an analytic function that depends on the magnitude of the electric field at that point.
So far I haven't been able to find any operator such as norm() or magnitude() or | | to represent the magnitude. I found an online solution for a simimlar problem in the tds module where the following was used to find the magnitude of mass flux of a certain species ineach direction. I coudn't convert this into a form that comsol would acccept for my problem.
sqrt(tds.mflux_cx^2+tds.mflux_cy^2+tds.mflux_cz^2)
Any help that anyone is able to provide would be much apreciated.
Thanks, Lee
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es.normE is the norm (aka, magnitude) of the electric field in the electrostatics module. If you've run an electrostatics model, then that should be available. Have you tried that?
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