Numerical Investigation of"Frog-Leap"Mechanisms of Three Particles Aligned Moving in an Inclined Channel Flow

作     者：Xiao-Dong Niu Ping Hu Xing-Wei Zhang Hui Meng Hiroshi Yamaguchi Yuhiro Iwamoto 

作者机构：College of EengineeringShantou UniversityShantou 515063China Energy Conversion Research CenterDepartment of Mechanical EngineeringDoshisha UniversityKyoto 630-0321Japan 

出 版 物：《Advances in Applied Mathematics and Mechanics》 (应用数学与力学进展（英文）)

年 卷 期：2015年第7卷第2期

页      面：207-228页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 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：This study was supported by the National Natural Science Foundation of China(NSFC No.11372168) the Second-batch Leading Talent Project of Guangdong Province of China,the Personal Research Starting Founding of Shantou University of China,the Natural Sci-ence Foundation of Guangdong Province of China and the Academic Frontier Research Project on "Next Generation Zero-emission Energy Conversion System"of Ministry of Education,Culture,Sports,Science and Technology in Japan The financial support is gratefully acknowledged 

主　　题：Frog-leap fluid-structure interactions inclined channelflow lattice Boltzmann method immersed boundary method 

摘      要：Intrigued by our recent experimental work(*** and ***-u,*** Eng.,133(2011),041302),the present study numerically investigate theflow-structure interactions(FSI)of three rigid circular particles aligned moving in an inclined channelflow at intermediate Reynolds numbers by using a momentum-exchanged immersed boundary-lattice Boltzmann method.Afrog-leapphenomenon observed in the experiment is successfully captured by the present simulation and flow characteristics and underlying FSI mechanisms of it are explored by examining the ef-fects of the channel inclined angles and Reynolds *** is found that the asym-metric difference of the vorticity distributions on the particle surface is the main cause of thefrog-leapwhen particle moves in the boundary layer near the lower channel boundary.