首页> 外文期刊>The Journal of Chemical Physics >SHEAR VISCOSITY OF MODEL MIXTURES BY NONEQUILIBRIUM MOLECULAR DYNAMICS .2. EFFECT OF DIPOLAR INTERACTIONS
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SHEAR VISCOSITY OF MODEL MIXTURES BY NONEQUILIBRIUM MOLECULAR DYNAMICS .2. EFFECT OF DIPOLAR INTERACTIONS

机译:非平衡分子动力学模型混合物的剪切粘度.2。二元相互作用的影响

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a recent paper [Lee and Cummings, J. Chem. Phys. 99, 3919 (1993)], we presented nonequilibrium molecular dynamics calculations of the shear viscosity of pure liquid argon, pure liquid krypton, and argon/krypton liquid mixtures at constant temperature (T=135 K) and pressure (P=40 bar) as the base case for a consistent study of the role of intermolecular potentials on the transport properties of molecular liquids and their mixtures. In this paper, nonequilibrium molecular dynamics is used to study the shear viscosity of pure dipolar fluids, polaronpolar fluid mixtures, and polar/polar fluid mixtures at the same temperature and pressure. The fluids are assumed to interact via Lennard-Jones intermolecular potentials augmented by point dipole/point dipole potentials in the case of polar/polar interactions. By comparing the computed shear viscosity with that for corresponding nonpolar pure fluids and mixtures, the effect of dipolar interactions on the shear viscosity can be clearly delineated. (C) 1996 American Institute of Physics. [References: 18]
机译:最近的论文[Lee and Cummings,J. Chem。物理99,3919(1993)],我们提出了在恒定温度(T = 135 K)和压力(P = 40 bar)下,纯液态氩,纯液态k和氩/ rypto液态混合物的剪切粘度的非平衡分子动力学计算。作为分子间电势对分子液体及其混合物的传输性质的作用进行一致研究的基础案例。在本文中,非平衡分子动力学用于研究在相同温度和压力下纯偶极流体,极性/非极性流体混合物以及极性/极性流体混合物的剪切粘度。假设在极性/极性相互作用的情况下,流体通过Lennard-Jones分子间电势相互作用,该分子间电势由点偶极/点偶极电势增强。通过将计算的剪切粘度与相应的非极性纯流体和混合物的剪切粘度进行比较,可以清楚地描述偶极相互作用对剪切粘度的影响。 (C)1996年美国物理研究所。 [参考:18]

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