Numerical simulation of Marangoni effects of single drops induced by interphase mass transfer in liquid-liquid extraction systems by the level set method  

作　　者：WANG JianFeng YANG Chao MAO ZaiSha 

机构地区：[1]Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China [2]Department of Chemical Engineering,Zhengzhou University,Zhengzhou 450052,China

出　　处：《Science China Chemistry》2008年第7期684-694,共11页中国科学（化学英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 20490206 & 20576133, 50404009);PetroChina and the National Basic Research Program of China (Grant Nos. 2004CB619203, 2004CB619203)

摘　　要：The mathematical model of mass transfer-induced Marangoni effect is formulated. The drop surface evolution is captured by the level set method, in which the interface is represented by the embedded set of zero level of a scalar distance function defined in the whole computational domain. Numerical simulation of the Marangoni effect induced by interphase mass transfer to/from deformable single drops in unsteady motion in liquid-liquid extraction systems is performed in a Eulerian axisymmetric reference frame. The occurrence and development of the Marangoni effect are simulated, and the re- sults are in good agreement with the classical theoretical analysis and previous simulation.The mathematical model of mass transfer-induced Marangoni effect is formulated. The drop surface evolution is captured by the level set method, in which the interface is represented by the embedded set of zero level of a scalar distance function defined in the whole computational domain. Numerical simulation of the Marangoni effect induced by interphase mass transfer to/from deformable single drops in unsteady motion in liquid-liquid extraction systems is performed in a Eulerian axisymmetric reference frame. The occurrence and development of the Marangoni effect are simulated, and the results are in good agreement with the classical theoretical analysis and previous simulation.

关 键 词：MARANGONI effect level set METHOD mass TRANSFER numerical simulation DROP 

分 类 号：TQ021[化学工程]