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

该提案要求为购买高速成像系统提供资金，该系统将安装在明尼苏达州圣保罗的圣托马斯大学工程学院。该系统将包括一个能够以每秒67.5万帧的速度记录的Photron Fastcam，用于观察微观现象的相关微物镜，激光和高强度LED照明光源，精确的手动定位阶段，以及驱动系统和进行图像处理的计算资源。工程学院将在财政上负责其维护和运营。复杂流体流动的高速成像使人们对微颗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。博士吗?Wentz和Shepard在伊利诺伊大学和明尼苏达大学的工作中参与了类似仪器和先进分析技术的设计和开发。谢泼德博士吗?S对液体横流中注入空气的基础研究表明，在产生微气泡时，壁面剪切应力与气泡直径的相关性比与体液速度的相关性更强，微气泡可用于减阻、强化传热和喷雾。

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.