文献类型：期刊文献

英文题名：Application of the renormalization group theory for critical asymmetry to surface criticality of one-component fluids

作者：Zhou, Zhiyu[1];Cai, Jun[1];Hu, Ying[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2021

卷号：544

外文期刊名：FLUID PHASE EQUILIBRIA

收录：;EI(收录号：20212610556992);WOS:【SCI-EXPANDED(收录号:WOS:000672431500008)】；

基金：For financial support, we are grateful to the National Natural Science Foundation of China (no. 20973062).

语种：英文

外文关键词：Critical asymmetry; Complete scaling; Renormalization group; Mean-field theory; Surface tension; Tolman length

摘要：It is well-known that the Tolman length which characterizes the first order curvature corrections to surface tension is associated with the asymmetry in fluid phase coexistence. Recently, we have developed a global renormalization group (GRG) method for describing such asymmetry both near to and far from the critical point. In this work, we use the GRG method and an approximate thermodynamic relation to calculate Tolman lengths of one-component simple fluids in a wide temperature range including the critical vicinity where the density functional theory and the square-gradient theory is inapplicable. Far from the critical point, the accuracy of this work is comparable to the density functional theory and the square-gradient theory. Near the critical point, the GRG method yields the scaling behavior consistent with the prediction of complete scaling theory. We also obtain an accurate method for calculating the near-critical surface tensions. (C) 2021 Elsevier B.V. All rights reserved.