Numerical Model of Multiphase Flows Based on Sub-Cell Resolution of Fluid Interfaces

Авторы: Menshov I.S., Serezhkin A.A.
Журнал: Computational Mathematics and Mathematical Physics
Том: 62
Номер: 10
Год издания: 2022
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 1723
Последняя страница: 1742
DOI: 10.1134/s096554252209010x
Аннотация: Compressible multiphase flows with resolved interfaces are numerically simulated. TheBaer–Nunziato relaxation model, which is nonequilibrium with respect to velocity, pressure, andtemperature, is used. The basic elements of the proposed approach are a simple model for local subcellreconstruction of the interface near a cell face and the simulation of relaxation processes in mixedcells by solving the composite Riemann problem. Two approximate solutions of this problem are proposedthat take into account the interaction of primary waves and the formation of secondary wavesbased on HLL- and HLLC-type Riemann solvers. The method does not require any special relaxationparameters and supports, in fact, a diffusion-free interface resolution, which is demonstrated bynumerically solving test problems.
Добавил в систему: Меньшов Игорь Станиславович

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