带通道插件管道流磁流体动力学效应的数值模拟

计算物理 ›› 2011, Vol. 28 ›› Issue (4): 535-539.

带通道插件管道流磁流体动力学效应的数值模拟

毛洁, 潘华辰, 聂欣

杭州电子科技大学机械工程学院, 浙江杭州 310018

收稿日期:2010-08-19 修回日期:2011-02-18 出版日期:2011-07-25 发布日期:2011-07-25
作者简介:毛洁(1974-),女,河北巨鹿,博士,副教授,从事磁流体的数值模拟研究.E-mlil:maojie@gmail.com
基金资助:
国家自然科学基金(10705010);教育部留学回国人员科研启动基金(36批)资助项目

Numerical Simulation of Magnetohydrodynamic Flow in Duct with Flow Channel Insert

MAO Jie, PAN Huachen, NIE Xin

School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China

Received:2010-08-19 Revised:2011-02-18 Online:2011-07-25 Published:2011-07-25

摘要/Abstract

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.

关键词: 管流, 通道插件, MHD压降

Abstract: 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.

Key words: duct flow, flow channel inserts, magnetohydrodynamic pressure drop

中图分类号:

TL33l

毛洁, 潘华辰, 聂欣. 带通道插件管道流磁流体动力学效应的数值模拟[J]. 计算物理, 2011, 28(4): 535-539.

MAO Jie, PAN Huachen, NIE Xin. Numerical Simulation of Magnetohydrodynamic Flow in Duct with Flow Channel Insert[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2011, 28(4): 535-539.

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