High - resolution acoustic doppler velocimeter

高分辨率声学多普勒测速仪

• 批准号: 407534-2011
• 负责人: Balachandar, Ramaswami
• 金额: $ 0.94万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472651
• 关键词: resolution; acoustic; doppler; velocimeter

It has been a common practice to discharge water, wastewater and industrial effluents into open channels such as rivers and streams. The ability to model these flow systems and the associated transport of sediments and pollutants is of critical importance in understanding the environmental impact of such discharges. In most cases, the flows are turbulent, which means the mixing and scour that occurs is largely due to small-scale chaotic behaviour of the fluid. To better understand and control the above mentioned flows/processes, knowledge of the velocity field is an essential ingredient. Research in several of the above-metioned areas are in progress at the University of Windsor. An essential insturment in researching the flows is a velocity measuring device. To this end, an accoustic Doppler velocimeter (ADV) is being requested to measure the velocity of the flow simultaneously with scouring of the bed and movement of sediment.

将水、废水和工业废水排放到河流和小溪等明渠中已成为一种常见的做法。模拟这些流动系统以及沉积物和污染物的相关运输的能力对于了解此类排放的环境影响至关重要。在大多数情况下，流动是湍流的，这意味着发生的混合和冲刷主要是由于流体的小尺度混沌行为。为了更好地理解和控制上述流动/过程，速度场的知识是一个必不可少的组成部分。温莎大学正在对上述几个领域进行研究。流速测量装置是研究流动的重要仪器。为此，要求使用声学多普勒流速仪（ADV）来测量水流速度，同时测量河床冲刷和泥沙运动。