A computational fluid dynamics study on electrohydrodynamics induction pumping

A computer program based on computational fluid dynamics has been developed for simulation of EHD induction pumping. An equation formulated for electric potential as the dependent variable is used, which removes the ambiguity of boundary conditions. The program can be applied in nonorthogonal coordinates. The calculations show that the dependency of applied voltage and frequency agree well with the experiments of Melcher's Backflows are shown in low frequency regime, which has been reported to have a destructive structure due to unstability in the experiments. In addition, the developments of flows are presented from unsteady simulations