基于梯度理论计算纯水表面张力  

ESTIMATION OF SURFACE TENSION OF WATER BASED ON THE GRADIENT THEORY

作　　者：蔡碧毓[1] 杨继涛[1] 

机构地区：[1]石油大学化工学部

出　　处：《石油大学学报（自然科学版）》1996年第5期77-80,共4页Journal of the University of Petroleum,China(Edition of Natural Science)

摘　　要：应用梯度理论和Ｐａｔｅｌ－Ｔｅｊａ方程相结合的半理论方法，计算了２０～１００℃时纯水的表面张力，提出了计算作用参数Ｃ的新型方程。结果表明，采用本文模型计算的表面张力值与文献实验值相比，平均相对误差仅为０．３％。Surface tensions of water at the temperatures of 20￣ 100℃ were calculated with the gradient theory of inhomogeneous fluids and Patel-Teja equation of state. The new model for the influence parameter C was proposed. The results show that the average relative deviation between calculated data and exporimental data was only 0. 30%.

关 键 词：表面张力 梯度理论 状态方程 纯水 石油化学 

分 类 号：TE621[石油与天然气工程—油气加工工程] O647.1[理学—物理化学]