MRI: Acquisition of a High-Speed Particle Image Velocimetry System for Fluid Dynamics Research

CTS-0521173M。爱荷华州立大学奥尔森-这笔赠款是为了获得用于流体力学研究的高速粒子成像测速(PIV)系统。主要研究团队在基于激光的流量测量技术方面拥有丰富的经验，例如PIV和平面激光诱导荧光(PLIF)。这些经验包括在新型PIV和PLIF技术的开发和进步方面的贡献，PIV和PLIF在具有挑战性的流动条件和复杂流动几何中的应用，以及将实验和计算流体力学整合到协调研究计划中。虽然购置高速PIV系统将使执行支助股正在进行的一些流体力学研究项目受益，但已选定两个研究项目立即实施高速PIV系统，该系统稍后将提供给其他实验室。这两个程序是湍流反应混合程序和风工程和实验空气动力学(WEEA)程序。之所以选择这两个项目，是因为这些项目的研究设施已经完全投入使用，从事这些项目的教职员工和学生都有在这些设施中进行PIV和PLIF测量的经验。购买高速PIV系统将补充正在进行的加强本科教育的努力。例如，为了将课堂教学和研究整合到WEEA计划中，该项目的龙卷风和微爆发模拟器已经设计成便于课堂展示实验室结果。有了这些模拟器和高速PIV系统，研究成果可以在本科课堂上直接展示，突出了流体力学在现实生活应用中的相关性，并向学生介绍了流体力学研究中使用的尖端工具。私人投资机构也有向本科生提供研究机会和从代表性不足的群体中招收学生的历史。利用高速PIV系统实现的研究进展将给社会带来直接的好处。在WEEA计划中，对社会的好处是将人的生命损失降至最低，并减少对地面结构的破坏。

CTS-0521173M. Olsen, Iowa State UniversityThis grant is to acquire a high-speed particle imaging velocimetry (PIV) system for fluid mechanics research. The team of principal investigators collectively has a vast amount of experience in laser-based flow measurement techniques such as PIV and planar laser-induced fluorescence (PLIF). This experience includes contributions in the development and advancement of novel PIV and PLIF techniques, the application of PIV and PLIF to challenging flow conditions and complex flow geometries, and the integration of experimental and computational fluid dynamics into coordinated research programs. While the acquisition of a high-speed PIV system will benefit a number of ongoing fluid mechanics research projects at ISU, two research projects have been selected for immediate implementation of the high speed PIV system, with the system later made available to other laboratories. These two programs are the turbulent reactive mixing program and the Wind Engineering and Experimental Aerodynamics (WEEA) program. These two programs have been chosen because the research facilities for these programs are already fully operational, and the faculty and students working on these programs have experience in performing PIV and PLIF measurements in these facilities. The acquisition of the high-speed PIV system will complement ongoing efforts to enhance undergraduate education. For example, to integrate classroom instruction and research in the WEEA program, the project's tornado and microburst simulators have been designed to facilitate classroom presentation of laboratory results. With these simulators and with the high-speed PIV system, research results can be directly demonstrated in undergraduate classes, highlighting the relevance of fluid mechanics in real-life applications, and introducing students to the cutting-edge tools used in fluid mechanics research. The PIs also have a history of providing research opportunities to undergraduate students and of recruiting students from underrepresented groups. The research advances that will be made possible with the high-speed PIV system will lead to direct benefits to society.. In the WEEA program, the benefits to society are minimizing the loss of human lives and mitigating the damage to ground-based structures.