Transport Properties of a Dense Fluid of Hard Spheres
Transport Properties of a Dense Fluid of Hard Spheres
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硬球稠密流体的输运特性
DOI:
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发表时间:
1956
期刊:
影响因子:
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通讯作者:
J. Pople
中科院分区:
文献类型:
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作者:
H. C. Longuet;J. Pople
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.