为了解决微管道(水力直径小于1 mm)内流量测量问题,采用Micro-PIV对水力直径为230 μm毛细玻璃管内流量进行测量。实验中对Re=480~2 260范围内流量进行测量,试验结果证明利用该技术完全可能实现微管道内流量精确测量。
Abstract
In order to solve the problem of measuring the flow rate in microtubes(the hydraulic diameter is under 1mm),the Micro-PIV is used to measure the flowrate within the capillary tube,and its hydraulic diameter is 230μm. In the experiment,the flowrate is measured in the reynolds number range of 480~2260,and the conclusion is that Micro-PIV technique can be used to measure the flowrate in the microtubes with high precision.
关键词
计量学 /
Micro-PIV /
微管道 /
流量
Key words
Metrology /
Micro-PIV /
Micro-tube /
Flow rate
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