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Two-phase flows: Second-order schemes and boundary conditions. (English) Zbl 0811.76051
A second-order numerical method suitable to unstructured grids is developed for the solution of two-phase flow equations. A number of assumptions are introduced, justified on physical grounds, when the dispersed phase concentration is low; their effect is to change the mathematical nature of the system of equations. The new numerical method put forward builds on van Leer’s original ideas. The solution of two Riemann problems is involved: one for the gas phase and the second for the dispersed phase.

76M20 Finite difference methods applied to problems in fluid mechanics
76T99 Multiphase and multicomponent flows
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