Engineering Research Equipment Grant: Ultrasonic Doppler Velocimeter

将购买一台超声波多普勒测速仪， 改进后可测量各种浆体中的速度分布 和沉积物流。 这个概念原型的证明 该装置已被建造并显示出在固体中工作 体积分数为50%，在玻璃中的穿透力为100 mm 珠子水混合物 这笔资金将用于建造一个 工作系统的特定浆料正在研究，在 波长和工作模式的选择。 的 使用超声波装置进行的测量将 与用另一种非侵入式 方法，即磁共振成像。 建议的超声波速度计将提供一个非- 插入式工具，用于真实的实时测量速度 固相在高浓度固体中的分布- 液体流动。

An ultrasonic Doppler velocimeter will be purchased and modified to measure velocity distributions in various slurry and sediment flows. A proof of concept prototype of this device has been constructed and shown to work at a solids volume fraction of 50% and a penetration of 100mm in glass beads, water mixture. The funds will be used to construct a working system for the particular slurry being studied, in terms of the choice of wave length and operating mode. The measurements performed with the ultrasonic device will be compared to the results obtained with another non-intrusive method, namely magnetic resonance imaging. The proposed ultrasonic velocimeter will provide a non- intrusive tool to measure in real time the velocity distribution of solid phase in highly concentrated solid- liquid flows.