中文摘要：

采用二维完全发展流模型对聚变反应堆包层带通道插件和压力平衡槽隙的矩形磁流体管流的MHD效应进行数值模拟,分析速度分布,MHD压降随哈德曼数以及通道插件的电导率的变化规律.与无插件磁流体管流相比,带绝缘通道插件管流MHD压降显著降低,MHD压降随哈德曼数的增加而减小,通道插件材料的电导率增加MHD压降系数减小.压力平衡槽隙处的回流与通道插件的电导率有关.在宏观上计算结果与实验结果和简化理论结果一致.

英文摘要：

Mangetohydrodynamic flow in a rectangular duct with flow channel insert and pressure equalization slot for fusion liquid metal blanket is studied numerically with a two-dimensional fully developed flow model.Velocity field and MHD pressure drop varying with Hartmann number and electric conductivity of FCI is analyzed.Compared with normal duct flow,MHD pressure drop with insulating FCI is reduced significantly.Dimensionless MHD pressure drop decreases as Hartmann number grows.Furthermore,reduction of MHD pressure drop becomes weaker as FCI electric conductivity increases.Reverse flow at pressure slot is related to electric conductivity of FCI.Numerical results are in good agreement with experimental and simplified results.