http://demonstrations.wolfram.com/AdjacentFlowOfTwoImmiscibleFluids/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. This Demonstration displays the velocity profile for the flow of two immiscible fluids between two flat plates under the influence of a pressure gradient DeltaP/L = 10. The fluid rates are adjusted so that the slit is half filled with the more... Contributed by: Housam Binous