Ultrasonic Measurements in Concentrated Suspensions

浓缩悬浮液中的超声波测量

• 批准号: 9107449
• 负责人: Harri Kytomaa
• 金额: $ 11.2万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9107449&HistoricalAwards=false
• 关键词: Ultrasonic; Measurements; Concentrated; Suspensions

Solids velocity distribution will be measured in an oscillating or continuously shearing cell, with a specially built ultrasonic Doppler velocimeter. Liquid pore pressure will also be determined. The objective is to obtain shear- strain relationships, and data on the effect of gravity on resettling. The research is focused on the flow measurements in concentrated slurries, and the improvement of the ultrasonic technique for particulate flows. The ultrasonic method will for non-intrusive measurements in dense slurry flow, which may lead to fundamental findings on the two-phase flow structure.

固体速度分布将在一个 振荡或连续剪切单元，具有特别的 超声多普勒测速仪。 液体孔隙压力 也将被确定。 目的是获得剪切力- 应变关系，以及重力对 重新安置 研究的重点是流量测量 在浓缩浆料中，以及改善 超声波技术的颗粒流。 超声波方法将用于非侵入式测量， 稠密的泥浆流，这可能会导致基本的发现， 两相流结构。