Electrostatic field and momentum source with CFX5
 

Hi all. I would appreciate to receive ideas on how to model the electrostatic field and the associated force using CFX. I could define a subdomain and then model the force as a momentum source, but then I will neglect the border effects. Moreover, the electrostatic force is not a volume force so I cannot, at least in principle, use the units required by the momentum source [kg m^-2 s^-2] Any ideas?