Homotopy analysis solutions for the asymmetric laminar flow in a porous channel with expanding or contracting walls

作     者：X.-H. Si L.-C. Zheng X.-X. Zhang Y. Chao 

作者机构：Applied Science School University of Science and Technology Beijing 100083 Beijing China Department of Mechanical EngineeringUniversity of Science and Technology Beijing100083 Beijing China Research Institute of Chemical Defense of the EL.A 102205 Beijing China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2011年第27卷第2期

页      面：208-214页

核心收录：

学科分类：08[工学] 090101[农学-作物栽培学与耕作学] 09[农学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0901[农学-作物学] 

基　　金：supported by the National Natural Science Foundations of China (50936003, 50905013) The Open Project of State Key Lab. for Adv. Matals and Materials (2009Z-02) Research Foundation of Engineering Research Institute of USTB 

主　　题：Homotopy analysis method · Expanding or contracting wall · Asymmetric laminar flow · Porous channel · Expansion ratio 

摘      要：In this paper, the asymmetric laminar flow in a porous channel with expanding or contracting walls is investigated. The governing equations are reduced to ordinary ones by using suitable similar transformations. Homotopy analysis method （HAM） is employed to obtain the expres- sions for velocity fields. Graphs are sketched for values of parameters and associated dynamic characteristics, especially the expansion ratio, are analyzed in detail.