Transport Properties of a Dense Fluid of Hard Spheres

Transport Properties of a Dense Fluid of Hard Spheres
复制标题

硬球稠密流体的输运特性

DOI:
--
复制
发表时间:
1956
期刊:
影响因子:
--
通讯作者:
J. Pople
J. Pople
中科院分区:
--
文献类型:
--
作者:
H. C. Longuet;J. Pople

文献摘要

被引文献

相似文献

从相对位置的成对分布函数与应变率或温度梯度无关以及速度分布为局部麦克斯韦分布这两个假设出发,推导出硬球流体的剪切粘度η、体积粘度κ和热导率λ的表达式。高密度。通过假设给定粒子速度的自相关函数呈指数衰减,还导出了任意密度下自扩散系数D的表达式。结果是η=4a5(mkTπ)12(PkT−NV),λ=2ak(kTπm)12(PkT−NV),κ=4a3(mkTπ)12(PkT−NV),D=a2(πkTm)12(PVRT−1)−1,其中m和a是球的质量和半径。
From the two assumptions, that the pair distribution function of relative position is independent of the rate of strain or the temperature gradient and that the velocity distribution is locally Maxwellian, expressions are derived for the shear viscosity η, the bulk viscosity κ and the thermal conductivity λ of a hard‐sphere fluid at high densities. An expression is also derived for the coefficient of self‐diffusion D at any density by assuming that the autocorrelation function for the velocity of a given particle decays exponentially. The results are η=4a5(mkTπ)12(PkT−NV),λ=2ak(kTπm)12(PkT−NV),κ=4a3(mkTπ)12(PkT−NV),D=a2(πkTm)12(PVRT−1)−1, where m and a are the mass and radius of the spheres.