聚变堆同芯母管流速分布的MHD效应研究  

Numerical Investigation of MHD Effect on Flow Distributions in the Manifolds of Fusion Reactor

作　　者：景昭[1] 王增辉[1] 倪明玖[1] 

机构地区：[1]中国科学院大学物理科学学院,北京100049

出　　处：《工程热物理学报》2013年第4期654-657,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.50936006);科技部ITER专项(No.2009GB104001)

摘　　要：磁约束聚变堆中的液态金属包层等部件处于磁场之中,在磁流体动力学效应的影响下,液态金属的流速分布及压降会随磁场不同而改变。本文基于相容守恒格式,对液态锂铅包层中的重要结构同芯母管,在磁场作用下的流速分布进行了数值模拟。对不同方向加磁场的计算结果表明,磁场会对其所在方向上的流动产生拉平效应,对于同芯母管而言,沿宽度方向所加的磁场能使流量在不同出口管道之间均匀分布,沿高度方向所加的磁场主要使同一出口管道中流速均匀分布,而对于管道间的流量分布作用较小。In liquid metal blankets of magnetic confinement fusion reactor, the pressure drop and velocity distribution of the liquid metal flow are influenced by magnetohydrodynamic （MHD） effects. In order to investigate the behavior of such a complex flow in manifolds in the liquid LiPb blanket under magnetic fields, a numerical model based on the consistent and conservative scheme has been constructed. The numerical results show that the velocity distribution is straightened along the magnetic field whichever direction it is. For the manifolds, the flow is evenly distributed among different pipes when the magnetic field is applied along the width, controversially, the magnetic field along the height will enable the flow uniformly distributed in the same pipe, while it has a negligible effect on flow distributions among different pipes.

关 键 词：磁流体动力学 同芯母管 液态锂铅包层 

分 类 号：O361.3[理学—流体力学]