Effect of the buoyancy force on natural convection in a cubical cavity with a heat source of triangular cross-section

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Gibanov, N.S.^1 ; Sheremet, M.A.^1

Tomsk State University, 36, Lenina ave., Tomsk

634050, Russia^1

关键词: Dimensionless variables;    Fluid flow and heat transfers;    Laminar natural convection;    Local heat source;    Second-order accuracy;    Three dimensional temperature fields;    Triangular cross-sections;    Vorticity vectors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012057/pdf
DOI  :  10.1088/1757-899X/124/1/012057

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Numerical analysis of laminar natural convection inside a cubical cavity with a local heat source of triangular cross-section has been conducted. The mathematical model formulated in dimensionless variables such as «vector potential functions - vorticity vector» has been solved by the finite difference method of the second order accuracy. The three-dimensional temperature fields, 2D streamlines and isotherms in a wide range of the Rayleigh number from 104to 106have been presented illustrating variations of the fluid flow and heat transfer.