Experimental investigation of MHD effects on lead flow

托卡马克中强磁场的存在导致磁流体动力学（MHD）洛伦兹力效应，这从根本上影响液态金属流的传热特性。磁流体对流体特性的影响对于液体增殖包层的设计和性能至关重要，但对该领域的了解相对较少。对这些磁流体效应的研究早在80年代初就开始了。然而，在大多数情况下，实验装置是相对简单的几何形状（典型的单一矩形或圆形测试部分）。因此，对于多个平行或横流通道，其与实际增殖包层设计更相关的实验数据非常有限。该项目将为现有包层设计提供反馈，并为数学模型验证提供实验数据，预计该研究将为预测MHD对聚变相关流动和热交换器的影响提供新的和更深入的理解，并为提高包层的热性能提供指导，这可以改善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.