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<p>Hello everyone,</p>
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<p>I am currently working on a time-dependent non-linear magnetodynamic case. The permeability is my non-linear term but I don't want it to be included in my calculations for simplicity. For this reason, I am using the flux density instead of permeability times
field strength (B = mu*H). I am currently using this formulation (T-ohm) and it seems to work:</p>
<p> </p>
<p>Galerkin { Dt[ mu_non[{H}]*Dof{H} , {H}] ; In Stack ; Jacobian JMat ; Integration GaussIntegration ; }<br>
Galerkin { [ 1/sig[]* Dof{Curl H} , {Curl H}] ; In Stack ; Jacobian JMat ; Integration GaussIntegration ; }</p>
<p> </p>
<p>However, if I substitute B into my equation: </p>
<p> </p>
<p>Galerkin { Dt[ B[Dof{H}] , {H}] ; In Stack ; Jacobian JMat ; Integration GaussIntegration ; }<br>
Galerkin { [ 1/sig[* Dof{Curl H} , {Curl H}] ; In Stack ; Jacobian JMat ; Integration GaussIntegration ; }</p>
<p> </p>
<p>It doesn't seem to do anything. I was wondering if there is a way to take the time derivative of my non-linear term in terms of a magnetic flux density as shown above.
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<p> </p>
<p>BR, </p>
<p> </p>
<p>John</p>
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