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首页> 外文期刊>International journal of computational methods >NUMERICAL SOLUTION FOR HYPERBOLIC CONSERVATIVE TWO-PHASE FLOW EQUATIONS
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NUMERICAL SOLUTION FOR HYPERBOLIC CONSERVATIVE TWO-PHASE FLOW EQUATIONS

机译：双曲型守恒两相流方程的数值解。

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摘要

We outline an approximate solution for the numerical simulation of two-phase fluid flows with a relative velocity between the two phases. A unified two-phase flow model is proposed for the description of the gas–liquid processes which leads to a system of hyperbolic differential equations in a conservative form. A numerical algorithm based on a splitting approach for the numerical solution of the model is proposed. The associated Riemann problem is solved numerically using Godunov methods of centered-type. Results show the importance of the Riemann problem and of centered schemes in the solution of the two-phase flow problems. In particular, it is demonstrated that the Slope Limiter Centered (SLIC) scheme gives a low numerical dissipation at the contact discontinuities, which makes it suitable for simulations of practical two-phase flow processes.
机译：我们概述了两相之间相对速度的两相流体流动数值模拟的近似解。提出了统一的两相流模型来描述气液过程，从而形成了保守形式的双曲型微分方程组。提出了一种基于分裂方法的数值解法。相关的Riemann问题使用中心型的Godunov方法以数值方式求解。结果表明，在解决两相流问题中，黎曼问题和中心方案的重要性。特别是，证明了以斜率限制器为中心（SLIC）方案在接触不连续点处的数值耗散较小，这使其适合于模拟实际的两相流过程。

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