THERMOELECTRIC MAGNETOHYDRODYNAMICS
THERMOELECTRIC MAGNETOHYDRODYNAMICS
复制标题
DOI：
10.1017/s0022112079000136
复制
发表时间：
1979-01-01
影响因子：
3.7
通讯作者：
SHERCLIFF, JA
中科院分区：
文献类型：
--
作者：
SHERCLIFF, JA
在磁场存在下的热电电流可以引起核反应堆中液态金属冷却剂的泵送或搅拌，或者工业冶金中熔融金属的搅拌。由于热对流的变化以及珀耳帖效应和汤姆逊效应（尽管这些效应通常很小），热场和磁流体动力场之间的相互作用是相互的。本文建立了热电耦合的磁流体力学方程和热对流方程，并在从头算已知热场的情况下，解决了一些示例性问题。其中的影响是由于连续或不连续的材料组成的变化的例子包括在内。实际的幅度进行了讨论的情况下，聚变反应堆毯，其中的影响是潜在的重要的，由于不寻常的热电功率的锂。
Thermoelectric currents in the presence of magnetic fields can cause pumping or stirring of liquid-metal coolants in nuclear reactors or stirring of molten metal in industrial metallurgy. The interaction between the thermal and magnetohydrodynamic fields is a mutual one owing to alterations in the thermal convection and to the Peltier and Thomson effects (although these are usually small). This paper sets up the equations of magnetohydrodynamics and thermal convection when coupled by thermoelectricity and solves some illustrative problems in which the thermal field is known ab initio. Examples where the effects are due to either continuous or discontinuous variation of material composition are included. Practical magnitudes are discussed for the case of a fusion-reactor blanket, where the effects are potentially important owing to the unusual thermoelectric power of lithium.