An Unstaggered Central Finite Volume Method For The Numerical Approximation Of Mixture Flows
INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2019(2020)
摘要
In this work we extend a previously developed unstaggered central finite volume method to the one-dimensional system of mixture two-phase flow problems. The numerical scheme is characterized by its simplicity and robustness as it evolves a piecewise linear numerical solution on a single grid and avoids the resolution of Riemann problems appearing at the faces of the control cells. The strategy consists of employing a second layer of staggered dual cells, on which the numerical solution is evolved at an intermediate time step before being projected back onto the cells of the original grid. The finite volume method is then implemented and used to solve classical mixture flow problems from the recent literature. The obtained numerical results are displayed; they confirm the potential of the unstaggered central scheme to properly and accurately solve mixture two-phase flow systems.
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关键词
numerical approximation,mixture,flows
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