Dielectrophoresis (DEP) involves the creation of forces on polarizable particles to induce movement in non uniform electric fields (usually AC electric fields). Dielectrophoretic forces can be used to characterize, handle and/or manipulate microscale and nanoscale bioparticles. This can include sorting, trapping and separating cells, viruses, bacteria, DNA, and the like. DEP can be fully accounted for in FLOW-3D and can be activated along with all other fluid flow options available in the code, such as one-fluid or two-fluid flow, with or without sharp interfaces.