NEED HELP WITH ANSYS MODELLING OF ELECTRICAL DISCHARGE MACHINING

HAi all,

I am a gradute student working on my thesis.Right now i am working on the EDM TOOl wear simulation. CAN ANY BODY HELP ME  on how to do modelling of ELECTRICAL discharge machining tool wear using ansys. Its very urgent . By simulation i need to produce a spark between an electrode and work piece. Due to dischartool shape chages. I am intrested in this tool wear

Thanks in advance

krishna