dear Deepan,
you may use SIMION where you dont need to give any equation. It will
calculate the fields and you may launch particles. it is very nice s/w for
particle tracing / tracking.
Nabhiraj


On Fri, Apr 13, 2012 at 11:10 PM, DEEPAN KISHORE KUMAR <
[email protected]> wrote:

> Hi All
>
> Does anyone know how to implement the Particle tracing either Mathematical
> Particle tracing or ACDC Particle Tracing.
>
> I want to know how to define the below force equation : How do
> I make COMSOL understand this equation in terms of first derivative, second
> derivative like f(u,ut,utt,t ) ???
>
> [image: F_\mathrm{DEP} = \frac{\pi r^2 l}{3}\varepsilon_m
> \textrm{Re}\left\{\frac{\varepsilon^*_p -
> \varepsilon^*_m}{\varepsilon^*_m}\right\}\nabla \left|\vec{E}\right|^2]
>
> Best regards
>
> --
> *Deepan Kishore Kumar*
>
> ------------------------------------------------------------------------------
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> Dubai International Academic City
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> United Arab Emirates
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