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

9726615 Georgiadis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。研究人员将开展与复杂内部流动系统中热质传递的磁共振成像(MRI)相关的研究。(L)将一类复杂的内部结构(固定微通道)中的流场表征为水动力条件和结构无序程度的函数。将考虑压力驱动、层流和不可压缩流动通过具有复杂间隙的固定固体基质，以及(2)在目标1的条件下，在相同几何形状的对流传输过程中，混相流体的温度和弥散将被量化。MRI测量结果将通过格子Boltzmann方法与直接数值模拟的结果进行比较，并将用于改进现有的对流传输模型。该项目汇集了两个拥有互补专业知识、研究能力和设备的实验室的努力。这两组人可以通过日本MRI扫描仪获得互补的MRI设施，以获得更高的磁场强度，从而获得更高的分辨率。拟议的工作将有助于高级诊断学领域的基本知识，并将展示将实验磁共振成像和数值工具相结合来分析工业设备设计中遇到的复杂热力学系统的可行性。年轻的科学家也将被包括在该项目中。通过思想和技术的交流，这个项目将扩大我们的基础知识基础，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. ***