论文部分内容阅读
采用配置点谱方法求解了在存在壁面温差的立体方腔内有外加磁场作用下热辐射对磁流体流动与传热的影响.采用谱投影算法处理速度和压力的耦合,辐射传递方程的角向离散采用球带等差数列微元等分离散坐标(SRAPN)法进行离散,最后在相同的节点下采用配置点谱方法进行求解.在验证数值方法之后,分析了Ha数、介质光学厚度、以及导热 辐射参数对等温面、流线投影等的详细影响规律.“,”The collocation spectral method is applied to solve the effects of thermal radiation on magnetohydrodynamics flow and heat transfer in a differentially heated cubical cavity in the presence of the external magnetic field.The improved projection scheme is used to deal with the couple of the velocity and the pressure.The radiative transfer equation is angularly discretized by the SRAPN quadrature scheme,based on the discrete ordinates method.Finally,all the governing equations are solved by using the collocation spectral method.After the simulation validations,the isothermal surfaces and the projection of the streamlines show the effects of the Hartmann number,the optical thickness and the conduction-radiation interaction parameter on the flow and heat transfer process.