Hi all, I am trying to do mesh convergence for electromagnetic problem. Type of element used triangular elements. I used denser elements in the region where current density occurs more.
First case scenario: I used physics controlled mesh with extra fine. I achieved the temperature I wanted.
Second case: I manually meshed below each coil denser elements. I made a mesh convergence test and the proof is attached below (X -axis is number of elements below coil alone. Y axis is the temperature). But, the temperature is lower than I expected. I am getting only 300 [degC] after the current density is well captured. I wanted the temperature at 400 [degC]. Can someone help me please? Any valuable input is appreciated.
HI Mr. Vishal,
The mesh(correlated with the geometry, material properties and frequency for AC) is very important if you have a AC electromagnetic 2D simulation.
The results obtained are correct.
You have done a study related to the influence of mesh on the value of temperature in a certain point for imposed values of the current/voltage and frequency.
You need to increase the value of the current /frequency in order to obtained a higher value of the temperature in a certain point, until you obtained the value you need.
Best regards!
Hi Mr. Alexandru. Thank you for your reply. I have performed experiments and obtained 400 degC at the point of interest. But, my simulations can come only upto certain value? is there any justification why this is happening? Every input from my side is correct. Especially the mesh too. Idk why or how I am able to get only 300 [degC] when I want 400 [degC]. Has this happen to you or anyone you know? I have seen this occurring in the past once. But really frustrating to not match my simulation with experiment
Hello Mr.Vishal,
1.Did you obtain 300 C for different mesh densities ? You can use the p FEM approach, high order finite elements, ex Lagrange.Or if your geometry allows you can try rectangular elements (mapped mesh).
2.The boundary conditions are ok ?
Best wishes !
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