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Found 2 results

  1. Hello, I am new in feko and I would like to simulate a transformer in toroidal form on which is wound two coils (primary and secondary) in order to determine the magnetic field throughout the space. I would like to do it in magnetostatics. But I have modeled the toroidal geometry which has dimensions of the order of the centimeter. I put a very low frequency (1Hz) as I work in magnetostatic. But I have conditioning problems when solving. When I put higher frequencies, the mesh becomes gigantic and takes a lot of time? I would like to know if it is possible to make such simulations with feko? Thanks for help.
  2. Hello, I can't solve the problem with model prepared in HyperMesh and exported to Flux. Model consists of two cylindrical coils on yoke, a solid conductor below them and the surrounding tetrameshed air. Analysis is set to magnetostatic. There is no non-linearity in any material Chesk physics doesn't give any error. Whenever I start to solve problem, Flux gives: "End of physical check. 12:03:00 9 sec. Start save ... 12:03:00 9 sec. ... end save Active formulation(s) : MS3SCRHJ : Magnetostatic scalar potential reduced versus Hj formulation MS3SCA : Magnetostatic total scalar potential formulation Matrix system : linear, real, symmetrical 12:03:01 10 sec. Start solving problem ... Step number 1 Non managed error which has stopped solving process 12:03:02 11 sec. Start reading ... 12:03:03 12 sec. ... end reading 12:03:03 12 sec. ... end solving problem. Closing project Close of E:/(.....) ... end closing project Can not execute the following command : Scenario['REFERENCEVALUES'].solve(projectName='proba.FLU') executeAlgo_c : Execution failed. Failed execution executeAlgo_c => failedstdcom.error.SoftwareFortranException: executeAlgo_c : Execution failed.Failed execution . . . quite long list of which execution has failed. Closing project ... end closing project Maximum use of 3623 MiB. in numerical memory For the dynamic table ID 1127406 Maximum use of 6 MiB. in character memory For the dynamic table ID 1073214 NUMZM ADRES SUIV PREC CODE LONG UID PROP4 ... 1 5 6 4 R08 5 0 0 2 1 5 5 C80 8 0 0 4 2941622223 1 6 R08 5 0 0 5 5496560 2 2 C80 8 0 0 6 5 4 1 I04 2 600037 0 Numerical memory: Total length =2941622222 (8 byte words) Present length = 600041 Useful length = 600041 Number of numerical arrays = 3 Character memory: Total length = 5496559 (80 byte words) Present length = 0 Useful length = 0 Number of character arrays = 2 Maximum number of arrays (num+char) = 100006" Any idea where could be the problem? Thanks Piotr
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