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 < deepan.kishor@gmail.com> 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* > > ------------------------------------------------------------------------------ ------------------------------------------------------------- > B.E.(Hons.) Electronics & Communication | BITS Pilani - Dubai Campus > Dubai International Academic City > +971.559.95.4960 > United Arab Emirates > > ------------------------------------------------------------------------------ ------------------------------------------------------------- > _______________________________________________ > Hosted by the MEMS and Nanotechnology Exchange, the country's leading > provider of MEMS and Nanotechnology design and fabrication services. > Visit us at http://www.mems-exchange.org > > Want to advertise to this community? See http://www.memsnet.org > > To unsubscribe: > http://mail.mems-exchange.org/mailman/listinfo/mems-talk > _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk