T O P I C R E V I E W |
CHIA001 |
Posted - Feb 23 2022 : 12:41:55 Hello, When I use FastHenry to caculate the inductance,I get a problem that the result of FastHenry's window is not the same as the output file Zc.mat.
EX:
The following is FastHenry input file
* FastHenry input file created using FreeCAD's ElectroMagnetic Workbench * See ht*p://w*w.freecad.org, ht*p://w*w.fastfieldsolvers.com and ht*p://epc-co.com .units mm .default sigma=58000.0 nhinc=1 nwinc=1 rh=2 rw=2 * Nodes NFHNode0 x=0 y=0.0 z=0.0 NFHNode1 x=0 y=100.000000 z=0.0
NFHNode2 x=1 y=0.0 z=0.0 NFHNode3 x=1 y=100.000000 z=0.0
NFHNode4 x=2 y=0.0 z=0.0 NFHNode5 x=2 y=100.000000 z=0.0
* Segments EFHSegment0 NFHNode0 NFHNode1 w=0.200000 h=0.200000 EFHSegment1 NFHNode2 NFHNode3 w=0.200000 h=0.200000 EFHSegment2 NFHNode4 NFHNode5 w=0.200000 h=0.200000 * Ports .external NFHNode0 NFHNode1 .external NFHNode2 NFHNode3 .external NFHNode4 NFHNode5 .freq fmin=1.000000 fmax=1.000000 ndec=1.0
.end
/////////////////////////////////////////////////////////
The follow ing is result of FastHenry's window
filling R and L... Total Memory allocated: 64 kilobytes Frequency = 1 Forming sparse matrix preconditioner.. conductor 0 from node nfhnode4 Calling gmres... 1 2 3 conductor 1 from node nfhnode2 Calling gmres... 1 2 conductor 2 from node nfhnode0 Calling gmres... 1 2 3
Computed matrices (R+jL) Row 0: nfhnode0 to nfhnode1 Row 1: nfhnode2 to nfhnode3 Row 2: nfhnode4 to nfhnode5 Freq = 1 Row 0: 0.0431034+1.34278e-07j -1.85793e-26+8.61664e-08j -1.29247e-26+7.25019e-08j Row 1: -1.37325e-26+8.61664e-08j 0.0431034+1.34278e-07j -8.07794e-27+8.61664e-08j Row 2: -1.45403e-26+7.25019e-08j -6.46235e-27+8.61664e-08j 0.0431034+1.34278e-07j
All impedance matrices dumped to file Zc.mat
Times: Read geometry 0.134 Multipole setup 0.298 Scanning graph 0.033 Form A M and Z 0.052 form M'ZM 0 Form precond 0.0349998 GMRES time 0.549 Total: 1.101 /////////////////////////////////////////////////////
The following is the content in Zc.mat
Row 3: nfhnode4 to nfhnode5 Row 2: nfhnode2 to nfhnode3 Row 1: nfhnode0 to nfhnode1 Impedance matrix for frequency = 1 3 x 3 0.0431034 +8.43692e-07j -1.85793e-26 +5.41399e-07j -1.29247e-26 +4.55543e-07j -1.37325e-26 +5.41399e-07j 0.0431034 +8.43692e-07j -8.07794e-27 +5.41399e-07j -1.45403e-26 +4.55543e-07j -6.46235e-27 +5.41399e-07j 0.0431034 +8.43692e-07j /////////////////////////////////////////////////
I have no idea why they not the same......
best, ChiaChen Hu
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1 L A T E S T R E P L I E S (Newest First) |
CHIA001 |
Posted - Feb 23 2022 : 12:50:46 I'm sorry about that I ask a stupid question. I check the "Help" document and know why it happen.
thanks, ChiaChen Hu |
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