Thank you so much for the reply. That is wonderful help for me.
Before you answer my question, I have tried with modeling the coil as a point in a 2D axisymmetric model. The result value (electromagnetic force on the blank surface) showed good accordance with literature,but the distribution is different.
Then I tried your advice, modeling the coils with cross section areas and assign a surface current on the interior boundaries ( Jsphi, unit is A/m). But the result is much less than results in literature. I have checked other boundary conditions (the outer boundaries are scattering, and the center is symmetric), the surface current and material properties. They are all fine.
Would you help figure out where the problem could be?
Before you answer my question, I have tried with modeling the coil as a point in a 2D axisymmetric model. The result value (electromagnetic force on the blank surface) showed good accordance with literature,but the distribution is different.
Then I tried your advice, modeling the coils with cross section areas and assign a surface current on the interior boundaries ( Jsphi, unit is A/m). But the result is much less than results in literature. I have checked other boundary conditions (the outer boundaries are scattering, and the center is symmetric), the surface current and material properties. They are all fine.
Would you help figure out where the problem could be?