dielectrophoresis simulation in comsol

hi
i'm a beginner in comsol , and i don't know how to simulate dielectrophoresis. i want to position a SWNT between electrodes with the help of dielectrophoresis and i want to observe the distribution of electric field intensity around the electrodes also the distribution of dielectrophoretic force.
so please suggest me the way in comsol, explain me the procedure from beginning. also let me know any paper if available.
please do help me.

Regards
Aditya jain
M.A.N.I.T. BHOPAL