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Time Dependent Study Error
Posted Jun 28, 2018, 11:46 p.m. EDT Low-Frequency Electromagnetics 0 Replies
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Hello Everyone,
I am very new to this comsol software. I am just trying to simualte a very basic model of electromagnet under the "Time Dependent Study" analysis. I have created a cylindrical coil core with Soft Iron (with losses) as its material and placed this core inside a sphere with "Air" as its material property. Selected "coil" under the physics: magnetic field (mf) and chose N = 10 and Coil current = 1 A, with coil type: Linear and conductor model : Homogenized multi-turn and also did the edge selection. After meshing while I computed under Time dependent study I got the following error message : "Failed to find consistent Initial values. Matrix has zero on diagonal. Last time step is not converged." I have attached the file for further reference. I have checked with different types of Direct and Iterative solvers : GMRES, VANKA etc but nothing gave me the solution. But with the exact same parameters I could run a "stationary study" successfully.
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Hello Arka Das
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