A multi-resolution method for two-phase fluids with complex equations of state by binomial solvers in three space dimensions

A multi-resolution method for two-phase fluids with complex equations of state by binomial solvers in three space dimensions
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三维空间二项式求解器的复杂状态方程两相流体的多分辨率方法

DOI:
10.1016/j.apnum.2021.04.022
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发表时间:
2021-04
影响因子:
2.8
通讯作者:
倪国喜
倪国喜
中科院分区:
数学2区
文献类型:
--
作者:
马文铧;赵中枢;倪国喜

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在本文中,我们提出了近似求解器的两相流体的状态方程(EOS)在高维。对于远离材料界面的每种流体,采用标准的有限体积格式。两相界面的捕获水平集方法与多分辨率算法相结合。对于具有一般状态方程的两相流体的Riemann解,我们利用二项式状态方程的Riemann解构造了一种迭代逼近方法。精确地得到了界面速度和界面交换通量。在自适应多分辨率算法的帮助下,我们方便地将该方法推广到三维空间。数值算例验证了该方法的有效性和鲁棒性。
In this paper, we propose approximate solvers for two-phase fluids with general equations of state (EOS) in high dimension. The standard finite volume scheme is used for each fluid away from material interface. The two-phase interfaces are captured by the level set method coupled with a multi-resolution algorithm. For the Riemann solver of two-phase fluids with general equations of state, we construct an iterative approximation method by the solver for binomial equations of state. The velocity of the interface and the interface exchange fluxes are obtained precisely. With the help of the adaptive multi-resolution algorithms, we extend the method to three space dimensions conveniently. Numerical examples are carried out to demonstrate the strength and robustness of this method.
DOI: 10.1090/s0025-5718-1982-0645656-0
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