Smoothed particle hydrodynamics model for phase separating fluid mixtures. I. General equations.
Smoothed particle hydrodynamics model for phase separating fluid mixtures. I. General equations.
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用于相分离流体混合物的平滑颗粒流体动力学模型。
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
P. Español
中科院分区：
文献类型：
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作者：
C. Thieulot;L. P. B. M. Janssen;P. Español
我们提出了一种热力学一致的离散流体粒子模型，用于模拟最近提出的一组相分离范德华流体混合物的流体动力学方程 [P.西班牙语和 C.A.P. Thieulot，J.化学。物理。 118, 9109 (2003)]。离散模型是通过遵循非平衡可逆-不可逆耦合 (GENERIC) 框架的热力学一致一般方程中的平滑粒子流体动力学 (SPH) 方法给出的离散化程序来制定的。每个流体粒子都携带有关质量、动量、能量和不同成分的质量分数的信息。离散模型允许模拟具有表面张力效应的相分离流体的非等温动态演化，同时严格遵守热力学第一定律和第二定律。
We present a thermodynamically consistent discrete fluid particle model for the simulation of a recently proposed set of hydrodynamic equations for a phase separating van der Waals fluid mixture [P. Español and C.A.P. Thieulot, J. Chem. Phys. 118, 9109 (2003)]. The discrete model is formulated by following a discretization procedure given by the smoothed particle hydrodynamics (SPH) method within the thermodynamically consistent general equation for the nonequilibrium reversible-irreversible coupling (GENERIC) framework. Each fluid particle carries information on the mass, momentum, energy, and the mass fraction of the different components. The discrete model allows one to simulate nonisothermal dynamic evolution of phase separating fluids with surface tension effects while respecting the first and second laws of thermodynamics exactly.