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Error in Coupled Electrostatics-Heat Transfer Simulation: Divergence in Linear Iterations?
Posted 01.07.2025, 18:45 GMT-4 Heat Transfer, Physics Interfaces 0 Replies
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Model Description: I am simulating power dissipation in a 3D chip with RF and DC electrodes embedded beneath insulating layers. The simulation uses:
Electrostatics (FEM) coupled with Heat Transfer in Solids.
Stationary study
Applied Voltage: 100 V on the RF electrodes.
Key Assumption: Since the electrode dimensions are in millimeters (mm), I approximated the 20 MHz RF signal as a DC field (quasi-static assumption) and opted for electrostatics instead of full electromagnetics.
Error Message:
Failed to find solution.
In temperature: Divergence of the linear iterations.
Returned solution is not converged.
Not all parameter steps returned.
Note: I kept mesh normal in size.
I need the solutions and susggestions asap.
Attachments:
Hello Qirat Iqbal
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