Acquisition of a High Speed Video Camera System with Microscopic Capabilities for Undergraduate Research and Teaching at the University of St. Thomas

该提案要求提供资金，用于购买一个高速成像系统，该系统将安装在明尼苏达州圣保罗的圣托马斯大学（UST）工程学院。该系统将包括能够以每秒675，000帧的速度记录的Photron Fastcam，用于观察微观现象的相关显微物镜，激光和高强度LED光源，精密手动定位平台以及用于驱动系统和进行图像处理的计算资源。工程学院将在财务上负责其维护和运营。对复杂流体流动的高速成像使人们对微粒形成和雾化冷却等不同领域的基本原理有了更深入的了解。医生？Wentz和谢泼德曾在伊利诺伊大学和明尼苏达大学从事过类似仪器和先进分析技术的设计和开发工作。谢泼德医生？的基础研究表明，壁面切应力与气泡直径的相关性比与液体体积速度的相关性更强，当产生微气泡时，微气泡在减阻、强化传热和喷雾方面有应用。

This proposal requests funds for the purchase of a high-speed imaging system to be housed in the School of Engineering at the University of St. Thomas (UST) in Saint Paul, Minnesota. The system will consist of a Photron Fastcam capable of recording at 675,000 frames per second, associated micro-objective lenses for viewing phenomena on the microscale, laser and high-intensity LED lighting sources, precision manual positioning stages, and computing resources to drive the system and conduct image processing. The School of Engineering will be financially responsible for its maintenance and operation. High-speed imaging of complex fluid flow is leading to a deeper understanding of the fundamentals in a diverse array of fields such as micro-particle formation and atomization cooling. Dr.?s Wentz and Shepard have been involved with the design and development of similar instrumentation and advanced analysis techniques in their previous work at the University of Illinois and the University of Minnesota. Dr. Shepard?s fundamental research on air injection into a liquid cross-flow has shown that wall shear stress is more strongly correlated to bubble diameter than bulk liquid velocity when generating micro-bubbles which find application in drag reduction, heat transfer enhancement and sprays.