Magnetohydrodynamic flows in arbitrary geometries in strong, nonuniform magnetic fields - a numerical code for the design of fusion reactor blankets
Magnetohydrodynamic flows in arbitrary geometries in strong, nonuniform magnetic fields - a numerical code for the design of fusion reactor blankets
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DOI：
10.13182/fst95-a30346
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
L. Bühler
中科院分区：
文献类型：
--
作者：
L. Bühler
磁流体动力学流动在液态金属聚变堆包层设计中起着重要的作用。约束等离子体的强磁场与导电冷却剂和繁殖材料的相互作用可能导致与流体动力流动相比的高压降和不寻常的流动结构。在强磁场中，管道流动表现出一个核心，其中粘性效应不重要，而所有流动变量都与极薄层内的边界条件相匹配。在无惯性无感应极限下，通过对核心和层的解析积分，可以将控制方程简化为压力和势的二维耦合方程。曲线边界拟合坐标的使用为任意几何形状的流动计算提供了一种独特的数值方法。通过一些例子说明了可能的广泛应用。参32。， 14个无花果。
Magnetohydrodynamic flows play an important role in the design of liquid-metal fusion reactor blankets. The interaction of the plasma-confining strong magnetic field and the electrically conducting coolant and breeding material may cause high pressure drop and unusual flow structures compared with hydrodynamic flows. In strong magnetic fields, duct flows exhibit a core where viscous effects are unimportant, while all flow variables are matched to the boundary conditions within extremely thin layers. In the inertialess inductionless limit, the governing equations can be reduced to a set of coupled two-dimensional equations for pressure and potential through analytical integration in the core and the layers. The use of curvilinear boundary-fitted coordinates leads to a unique numerical procedure for flow calculations in arbitrary geometries. The wide range of possible applications is demonstrated by some examples. 32 refs., 14 figs.