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

CTS-0521173M。奥尔森，爱荷华州州立大学这笔赠款是为了获得一个高速粒子成像测速（PIV）系统的流体力学研究。 主要研究人员团队在基于激光的流量测量技术（如PIV和平面激光诱导荧光（PLIF））方面拥有丰富的经验。这些经验包括对新型PIV和PLIF技术的开发和进步，PIV和PLIF在具有挑战性的流动条件和复杂流动几何形状中的应用，以及将实验和计算流体动力学整合到协调的研究计划中的贡献。 虽然获得高速PIV系统将有利于ISU正在进行的一些流体力学研究项目，但已选择两个研究项目立即实施高速PIV系统，该系统随后将提供给其他实验室。这两个计划是湍流反应混合计划和风力工程和实验空气动力学（WEEA）计划。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，从事这些项目的教师和学生在这些设施中进行PIV和PLIF测量方面有经验。高速PIV系统的采购将补充正在进行的努力，以加强本科教育。例如，为了在WEEA方案中整合课堂教学和研究，设计了该项目的龙卷风和微下击暴流模拟器，以便于在课堂上介绍实验室结果。通过这些模拟器和高速PIV系统，研究成果可以直接在本科课堂上展示，突出流体力学在实际应用中的相关性，并向学生介绍流体力学研究中使用的尖端工具。 PI也有为本科生提供研究机会和从代表性不足的群体中招募学生的历史。 高速PIV系统所带来的研究进展将直接造福社会。在WEEA计划中，对社会的好处是最大限度地减少人类生命的损失和减轻对地面结构的破坏。

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.