流体力学领域国际合作研究大尺度折射率匹配流动系统
In recent international collaboration, Idaho National Laboratory (INL) and Universitä t Erlangen (UE)have developed large MIR flow systems which are ideal for joint graduate student education and research. The benefitof the MIR technique is that it permits optical measurements to determine flow characteristics in complex passages andaround objects to be obtained without locating a disturbing transducer in the flow field and without distortion of theoptical paths. The MIR technique is not new itself others employed it earlier. The innovation of these MIR systems istheir large size relative to previous experiments, yielding improved spatial and temporal resolution. This report willdiscuss the benefits of the technique, characteristics of the systems and some examples of their applications to complexsituations. Typically their experiments have provided new fundamental understanding plus benchmark data forassessment and possible validation of computational thermal fluid dynamic codes.