NUMERICAL SIMULATION OF THE DISPERSION IN OSCILLATING FLOWS WITH REVERSIBLE AND IRREVERSIBLE WALL REACTIONS

作     者：ZHANG Dao-xiang LU Zhi-ming LIU Yu-lu NG Chiu-On ZHANG Dao-xiang Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China College of Mathematics and Computer Science,Anhui Normal University,Wuhu 241000,China LU Zhi-ming,LIU Yu-lu Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China NG Chiu-On Department of Mechanical Engineering,The University of Hong Kong,Hong Kong,China

作者机构：Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 China College of Mathematics and Computer Science Anhui Normal University Wuhu 241000 China Department of Mechanical Engineering The University of Hong Kong Hong Kong China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2009年第21卷第4期

页      面：482-490页

核心收录：

学科分类：081704[工学-应用化学] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10472063) the Shanghai Pujiang Program for Talented Scholars (Grant No. 06PJ14041) 

主　　题：dispersion flow oscillation wall reactions 

摘      要：This is a study on the mass transport of a solute or contaminant in oscillating flows through a circular tube with a reactive wall layer. The reaction consists of a reversible component due to phase exchange between the flowing fluid and the wall layer, and an irreversible component due to absorption into the wall. The short-time dispersion characteristics are numerically investigated, incorporating the coupling effects between the flow oscillation, sorption kinetics, and retardation due to phase partitioning. The effects of various dimensionless parameters e.g., Da （the Damkoehler number）, α （phase partitioning number）, F （dimensionless absorption number）, and δ （dimensionless Stokes boundary layer number） on dispersion are discussed. In particular, it is found that there exist trinal peaks of the breakthrough curves in some cases.