U.S.-Japan Cooperative Research: Magnetic Resonance Imaging of Heat and Mass Transfer in Complex Internal Flow Systems

小行星9726615 该奖项支持伊利诺伊大学厄巴纳分校的John Georgiadis教授和日本东京工业大学的Ken Okazaki教授之间为期三年的合作研究项目。 研究人员将进行与磁共振成像（MRI）有关的研究，以了解复杂内部流动系统中的热量和质量传递。 该研究涉及系统的非侵入性测量与MRI，以实现以下目标：（1）在一类复杂的内部结构（固定的微通道）的流场将被表征为流体动力学条件和结构紊乱程度的函数。 压力驱动的，层流，和不可压缩的流动通过固定的固体基质与复杂的间隙空间将被考虑和（2）在目标1的条件下，温度和可混溶流体的分散将在相同的几何形状的对流输送过程中进行量化。 MRI测量结果将通过格子玻尔兹曼方法直接数值模拟的结果进行比较，并将用于改善现有的对流传输模型。 该项目汇集了两个实验室的努力，这两个实验室具有互补的专业知识、研究能力和设备。 这两个小组可以使用互补的MRI设施，日本MRI扫描仪设计用于更高的磁场强度，从而提高分辨率。 拟议的工作将有助于在先进的诊断领域的基础知识，也将证明实验MRI和数值工具相结合，以分析在工业设备的设计中遇到的复杂的热流体动力学系统的可行性。 年轻的科学家也将参与该项目。 通过交流思想和技术，该项目将扩大我们的基础知识，促进国际理解与合作。 ***

9726615 Georgiadis This award supports a three year collaborative research project between Professor John Georgiadis of the University of Illinois, Urbana and Professor Ken Okazaki of the Tokyo Institute of Technology in Japan. The researchers will be undertaking studies relating to magnetic resonance imaging (MRI) of heat and mass transfer in complex internal flow systems. The research involves systematic non-invasive measurements with MRI in order to accomplish the following objectives: (l) the flow field in a class of complex internal structure (fixed microchannels) will be characterized as a function of hydrodynamic conditions and degree of structural disorder. Pressure-driven, laminar, and incompressible flows through fixed solid matrices with complicated interstitial space will be considered and (2) under conditions of objective 1, the temperature and the dispersion of miscible fluid will be quantified during convective transport in the same geometries. MRI measurements will be compared to the results of direct numerical simulation via Lattice Boltzmann methods, and will be used to improve existing models of convective transport. This project brings together the efforts of two laboratories that have complementary expertise, research capabilities and equipment. The two groups have access to mutually complementary MRI facilities with the Japanese MRI scanner designed for higher magnetic field strength, and thus higher resolution. The proposed work will contribute to fundamental knowledge in the areas of advanced diagnostics and will also demonstrate the feasibility of combining experimental MRI and numerical tools to analyze complex thermohydrodynamic systems encountered in the design of industrial devices. Younger scientists will also be included in the project. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation. ***