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# Different methods for calculating force

- To: femm@yahoogroups.com
- Subject: Different methods for calculating force
- From: "dfj_stevenson" <Douglas@magtech.co.uk>
- Date: Fri, 03 May 2002 12:07:56 -0000
- User-agent: eGroups-EW/0.82

    Dear all,

    Can someone please comment on the usage of
    1) Field Energy
    2) Coenergy
    3) Maxwells Stress Tensor

    When calculating force in Magnetostatic problems in FEMM. In
    particular what are the differences the three methods and when is it
    most appropriate to utilise a particular method. I am particularly
    interested in the basic mathematics and the numerical methods eg mesh
    density, precision that are involved.

    Thank-you

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