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# 3 phase cable

- To: femm@yahoogroups.com
- Subject: 3 phase cable
- From: lkloesel@mail.qnet.com
- Date: Tue, 23 Oct 2001 19:26:26 -0000
- User-agent: eGroups-EW/0.82

    Dear All,

    I was trying to simulate the rotating fields around a 3 phase cable
    (see FEMM folder 3_phase_cable). In order to change the currents, I
    used modifycircprop() lua command. As you can see, in the
    pre-processor script, I changed the currents by adding 10 degrees
    to each program loop. The post-processor file will take a snap-shot
    of
    the field, to which I will eventually assemble with a gif-animator to
    reveal a very nice animation of the fields.
    My problem is this: FEMM hangs in the fkern portion, the biconjugate
    gradient solver just sits there. I had to add 0.5 (or 0.1) to the
    currents in order to get fkern to unhang. I believe there may be a
    bug here which warrents review. I changed the precision, but that
    didn't work. I looked for a simple lua method of rounding the
    numbers
    after they were created from the sin() and cos() functions, but found
    none readily available.

    Once again thanks,
    Hope this helps

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