In the frame of the EUROfusion breeding blanket research activities, the water cooled lead lithium (WCLL) blanket is considered as reference liquid metal blanket design to be tested in ITER and to be used in a DEMO reactor. The design of breeding blankets represents a major challenge for fusion reactor engineering because of the performance requirements and the severe operating conditions in terms of heat load and neutron flux. Liquid metal alloys such as lead-lithium, PbLi, are considered as breeder material, due to their lithium content required for tritium production, and as heat transfer medium because of their large thermal conductivity and the possibility to be operated at high temperature. On the other hand, the motion of the electrically conducting breeder in the plasma-confining magnetic field induces electric currents and generates strong electromagnetic forces that modify significantly the velocity distribution in the blanket compared to hydrodynamic conditions and increase pressure losses. Magnetohydrodynamic (MHD) pressure drops have to be carefully quantified, since excessive values can jeopardize the feasibility of the considered blanket concept. The present work investigates numerically liquid metal MHD flows in manifolds of a WCLL test blanket module. Velocity and pressure distributions are analyzed.

在 EUROfusion 育种毯研究活动的框架内，水冷铅锂 (WCLL) 毯被视为参考液态金属毯设计，将在 ITER 中进行测试并用于 DEMO 反应堆。由于热负荷和中子通量方面的性能要求和严酷的运行条件，增殖毯的设计代表了聚变反应堆工程的主要挑战。液态金属合金，如铅锂、PbLi，由于其生产氚所需的锂含量而被认为是增殖材料，并且由于它们具有大的热导率和在高温下工作的可能性而被认为是传热介质。另一方面，导电增殖体在等离子约束磁场中的运动会感应出电流并产生强大的电磁力，与流体动力学条件相比，这种力显着改变了毯子中的速度分布，并增加了压力损失。必须仔细量化磁流体动力学 (MHD) 压降，因为过高的值会危及所考虑的毯子概念的可行性。目前的工作以数值方式研究了 WCLL 测试毯模块的歧管中的液态金属 MHD 流动。分析速度和压力分布。因为过高的值会危及所考虑的一揽子概念的可行性。目前的工作以数值方式研究了 WCLL 测试毯模块的歧管中的液态金属 MHD 流动。分析速度和压力分布。因为过高的值会危及所考虑的一揽子概念的可行性。目前的工作以数值方式研究了 WCLL 测试毯模块的歧管中的液态金属 MHD 流动。分析速度和压力分布。