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在一个多孔介质中含倾斜矩形夹杂物时,数值地研究磁流体动力学自然对流热交换问题.矩形夹杂的边界条件为两个绝热壁和两个等温壁.使用适当的变量集,将控制方程:连续性条件、推广的Darcy定理——Forchheimer律、能量方程变换为无量纲形式,然后使用有限差分格式求解.磁效应数、Darcy-Rayleigh数、矩形夹杂物的倾斜角以及纵横比作为控制参数.得到多孔介质中含矩形夹杂物时,磁效应数和倾斜角参数影响流体流动和热交换的规律.
In a porous medium with inclined rectangular inclusions, the numerical study of the MHD natural convection heat exchange problem is carried out.The boundary conditions for rectangular inclusions are two adiabatic walls and two isothermal walls.Using the appropriate set of variables, the governing equations : Continuity condition, extended Darcy’s theorem - Forchheimer’s law, the energy equation is transformed into a dimensionless form and then solved using the finite difference scheme. The magnetic effect number, the Darcy-Rayleigh number, the tilt angle of the rectangular inclusions and the aspect ratio are taken as the control parameters When rectangular inclusions are contained in porous media, the parameters of magnetic effect and tilt angle affect the laws of fluid flow and heat exchange.