Abstract
In the present paper a novel numerical method for solving the problem of t wo-phase flow with moving interfaces in both laminar and turbulent flow regimes is developed. The developed numerical method is based on the solution of the Reynolds-Averaged Navier Sto kes equations in both phases separately with appropriate boundary conditions located at the interface separating the two flu ids. The solution algorith m is performed on a regular and structured two-dimensional co mputational grid using the control volume approach. The co mplex shapes as well as the geometrical quantities of the interface are determined via the level set method. The numerical method is firstly validated against the prediction of the well known flow dynamics over a circu lar cylinder. Further, the numerical simulat ion of two collid ing droplets in gas flow is nu merically pred icted showing the important dynamics associated with the different flow reg imes considered. The remarkable capability of the developed numerical method in predicting turbulent two-phase flow dynamics enables us to predict further a wide range of two-phase flo w industrial and engineering applications.
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