【作者】 公茂琼； 罗二仓； 周远；

【Author】 Gong Maoqiong Luo Ercong Zhou Yuan(Cryogenic Laboratory, Chinese Academy of Sciences, Beijing 10080)

【机构】 中科院低温技术实验中心；

【摘要】 状态方程与Enskog稠密气体理论相结合是一种方便有效的迁移物性计算方法。利用该方法对两种混合物在不同的压力范围和温度范围内进行了计算。计算结果与实验数据相比较,对两种混合物粘度预测绝对平均偏差分别为2.88％和1.63％,导热系数预测绝对平均偏差分别为0.81％和3.69％。更多还原

【Abstract】 The Enskong dense-gas theory combined with equation of state is convenient and efficient method for predicting the transport properties of multicomponent mixtures. In this paper an empirical modification of Enskog equation is proposed to improve the prediction accruacy of viscosity coefficient and thermal conductivity for mixtures. Extensive comparisons with experimental data are made for a wide range of fluid states for two mixtures. The total average absolute deviations are 2. 88% and 1. 63% for viscosity, and 0. 81% and 3. 69% for thermal conductivity respectively.更多还原