改进的McAllister三体模型推算二元混合物的黏度

发布时间：2018-04-22 05:30

本文选题：McAllister三体模型 + 二元混合物　；参考：《工程热物理学报》2017年08期

【摘要】：McAllister三体模型被普遍认为是针对液体混合物黏度的最佳关联式。本文在对三类(醇类/醇类、烷烃/烷烃、烷烃/醇类)二元混合物黏度数据进行文献收集的基础上,发现McAllister模型中的相互作用参数(v12和/21)随混合物的等效分子量和温度呈现出规律性的变化。因此,本文建立了一种改进的McAllister三体模型,并对乙醇与醇类(包括丙醇、丁醇、戊醇、己醇、庚醇、辛醇、壬醇、癸醇),正丁基环己烷与烷烃(包括庚烷、辛烷、壬烷、癸烷、十二烷、十四烷),异辛烷与醇类(包括丙醇、戊醇、己醇、庚醇)的黏度进行了计算,计算结果表明,计算值与实验值之间的总体平均绝对偏差为1.00%,最大偏差为9.75%。
[Abstract]:The McAllister three-body model is generally considered to be the best correlation for the viscosity of liquid mixtures. In this paper, the viscosity data of three binary mixtures (alcohols / alcohols, alkanes / alkanes, alkanes / alcohols) are collected. It is found that the interaction parameters (v _ (12) and / / 21) in the McAllister model vary regularly with the equivalent molecular weight and temperature of the mixture. Therefore, an improved McAllister trisomy model is established, and the relationship between ethanol and alcohols (including propanol, butanol, pentanol, hexanol, heptanol, octanol, nonyl alcohol, decanol), n- cyclohexane and alkanes (including heptane, octane, nonane, decane, decane) is established. The viscosity of dodecane, tetradecane, isooctane and alcohols (including propanol, pentanol, hexanol, heptanol) has been calculated. The calculated results show that the total average absolute deviation between the calculated value and the experimental value is 1.00 and the maximum deviation is 9.75.
【作者单位】：西安交通大学热流科学与工程教育部重点实验室;
【基金】：国家自然科学基金资助项目(No.51476129)
【分类号】：O645.16

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