Quantitative simulation of gas-particle two phase plane mixing layer usingdiscrete vortex method

The gas and particle phase in a two-phase plane mixing layer flow are numer ically simulated using the discrete vortex method and a trajectory tracking method. It is shown that the number of vortex elements contained in two se mi-infinite discrete vortex sheet and the method of generating control volu mes for statistical calculation of the particle phase have important effect s on the predicted results of particle phase, especially for quantitative p rediction. By adopting different number of vortex elements for two semi-inf inite discrete vortex sheet and overlapping the control volumes, predicted results including streamwise velocity, fluctuating velocity and Reynolds sh ear stress of both phases are obtained and agree well with experimental mea surements quantitatively. It shows that the discrete vortex method can achi eve the accurate quantitative simulation of two-phase flow.