Explicit analytical solutions of axisymmetric laminar natural convection along vertical tubes  

作　　者：CAIRuixian ZHANGNa GOUChenhua 

机构地区：[1]InstituteofEngineeringThermophysics,ChineseAcademyofSciences,Beijing100080,China

出　　处：《Progress in Natural Science:Materials International》2005年第3期258-261,共4页自然科学进展·国际材料（英文版）

基　　金：NationalNaturalScienceFoundationofChina (GrantNo .5 0 2 460 0 3 )andMajorStateBasicResearchDevelopmentProgramofChi na (GrantNo .G2 0 0 0 0 2 63 )

摘　　要：There are many natural convection processes in various fields, and it isstill valuable to investigate the fluid dynamics and heat transfer of natural convection Theanalytical solutions are meaningful in both theoretical investigation and practical applications.Specially, they can be used as the benchmark solutions to check the numerical solutions and todevelop numerical differencing schemes, grid generation methods and so on, Two explicit analyticalsolutions of axisyrnmetric steady laminar natural convection along a vertical tube with porous walland between two vertical concentric tubes are derived for better understanding of the flow and heattransfer as well as promoting the computational fluid dynamics and computational heat transfer.There are many natural convection processes in various fields,and it is still valuable to investigate the fluid dynamics and heat transfer of natural convection.The analytical solutions are meaningful in both theoretical investigation and practical applications.Spe-cially,they can be used as the benchmark solutions to check the numerical solutions and to develop numerical differencing schemes,grid generation methods and so on.Two explicit analytical solutions of axisymmetric steady laminar natural convection along a vertical tube with porous wall and between two vertical concentric tubes are derived for better understanding of the flow and heat transfer as well as promot-ing the computational fluid dynamics and computational heat transfer.

关 键 词：analytical solution natural convection laminar flow boundary layer vertical cylindrical tube 

分 类 号：O35[理学—流体力学]