A Spectral Finite Difference Analysis of Natural Convection in a Rectangular Equilateral Triangle Cavity  

作　　者：Yoshihiro Mochimaru 

机构地区：[1](Tokyo Institute of Technology, Tokyo 152-8550, Japan)

出　　处：《Journal of Thermal Science》2000年第1期93-96,共4页热科学学报（英文版）

摘　　要：A steady-state two-dimensional natural convection in a rectangular equilateral triangle cavity is analyzed numerically, using a spectral finite difference scheme, where a conformal mapping coordinate system is adopted with a unit circle for the boundary. Vorticity-stream function formulation is used in conjunction with an energy equation. Time marching algorithm in a diagonal dominant form under a Fourier series decomposition is used to give a steady-state field for a Mixed (Neumann and Dirchlet ) thermal boundary condition even at a Grashof number of 106.

关 键 词：spectral method finite difference natural convection 

分 类 号：TK12[动力工程及工程热物理—工程热物理]