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 problem in superconductor inductance		  New Topic  Reply to Topic
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zhaoqingyuan

1 Posts
Posted - Apr 06 2011 :  15:21:32  Show Profile  Reply with Quote
Hi,
I studied the example sline1.inp and constructed my input file.However,there is no meanful result after running. I post my code. Can anybody help me?

Thanks
Qingyuan

The codes are:

.Units um
.freq fmin=1e9 fmax=10e9 ndec=10

* conductor
* The nodes
N1 x=-10 y=0 z=0.5
N2 x=-50 y=0 z=0.5
N3 x=-50 y=-100 z=0.5
N4 x=-50 y=100 z=0.5
N5 x=-50 y=95 z=0.5
N6 x=50 y=95 z=0.5
N7 x=50 y=100 z=0.5
N8 x=50 y=-100 z=0.5
N9 x=-50 y=-95 z=0.5
N10 x=50 y=-95 z=0.5
N11 x=10 y=0 z=0.5
N12 x=50 y=0 z=0.5

* The elements connecting the nodes
E1 N1 N2 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1
E2 N3 N4 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1
E3 N5 N6 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1
E4 N7 N8 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1
E5 N9 N10 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1
E6 N11 N12 w=10 h=.1 nwinc=5 nhinc=5 lambda=0.1

* "ground plane"
N13 x=-10 y=0 z=-0.1
N14 x=-150 y=0 z=-0.1
N15 x=10 y=0 z=-0.1
N16 x=150 y=0 z=-0.1

E7 N13 N14 w=300 h=0.2 nwinc=5 nhinc=5 lambda=0.1
E8 N15 N13 w=300 h=0.2 nwinc=5 nhinc=5 lambda=0.1
E9 N16 N15 w=300 h=0.2 nwinc=5 nhinc=5 lambda=0.1



* short one end
.equiv N1 N13

* input port
.external N11 N15

.end

Enrico

550 Posts
Posted - Apr 18 2011 :  23:52:54  Show Profile  Reply with Quote
I see you are using the customized version of FastHenry that handles superconductors. This version is not distributed / supported by us at FastFieldSolvers. You could try posting your question to w*w.wrcad.com.
However, looking into your input file, I would say that your 'ground plane' is too large (w=300) with respect to the filament discretization you are specifying (nwinc=5). My guess is to check the discretizations. The 'ground plane' in itself btw is also peculiar, with some gaps. Please remember that perpendicular segments can be overlapping, and must be in a complete ground plane; see the documentation about the standard FastHenry2 ground plane definition.

Best Regards,
Enrico
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