Experimental investigation of MHD effects on lead flow

托卡马克中强磁场的存在导致了磁流体动力学（MHD）洛伦兹力效应，这从根本上影响了液态金属流动的传热特性。MHD对液体繁殖毯流动特性的影响对其设计和性能至关重要，但这一领域的研究相对较少。对MHD影响的研究早在80年代早期就开始了。然而，在大多数情况下，实验装置是相对简单的几何形状（典型的单个矩形或圆形测试截面）。因此，多个平行或交叉通道的实验数据非常有限，这与实际的增殖毯设计更相关。该项目将为现有的毛毯设计提供反馈，并为数学模型验证提供实验数据。该研究有望为预测MHD对聚变相关流动和换热器的影响提供新的和更深入的认识，并为提高包层的热性能提供指导，从而改进聚变反应堆的设计和可行性。

The presence of a strong magnetic field in tokamaks leads to Magneto Hydro Dynamic (MHD) Lorentz force effects, which fundamentally impact the heat transfer characteristics of a liquid metal flow. The effect of MHD on the flow characteristics is of utmost importance for the design and performance of liquid breeder blankets, but the field is relatively poorly understood. Studies of these MHD effects started already in the early '80s. However, in most cases, the experimental setups were of relatively simple geometry (typical single rectangular or circular test section). Thus, there is very limited experimental data for multiple parallel or crossflow channels, which are more relevant to the actual breeder blanket design. The project will provide feedback to existing blanket designs as well as experimental data for mathematical model validation.The proposed study is expected to provide a new and deeper understanding of the prediction of MHD effects on fusion-relevant flows and heat-exchangers and guidance for increasing thermal performance of blankets, which can improve the design and viability of fusion reactors.