Pressure intensity method stirring current simple velocity measurement device and velocity measurement method
A speed measuring device and water flow technology, which is applied in the direction of measuring device, fluid velocity measurement by pressure difference, fluid velocity measurement, etc., can solve problems such as no interface, no marine environment background, etc., to achieve simple operation, effective water velocity, test The effect of precision satisfaction
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[0041] Size determination:
[0042] Taking β=0, the container barrel 4 has a diameter of 550 mm, a net depth of 550 mm, and an outermost edge speed of about 2 m / s.
[0043] Ho: The device must first meet the point flow velocity that can be measured to the bottom surface, so Ho≥550mm, take Ho=570mm;
[0044] MO section and MF section: when the measured point is located at the outermost point of the container barrel 4, the rising height will reach the maximum value, and the calculated total rising height should be 750mm, so MO≥500mm, MF≥500mm; take MO=MF =500mm;
[0045] Ha: take its length as 100mm;
[0046] Simultaneously, take the U-shaped pipe part 7 of the upper right part of the Pitot velocimeter 2 with a reduced cross-section.
[0047] Then we can use the experimental method to determine the value of the velocity loss β, and at the same time establish a formula table for the velocity and the rising height of the water column in the U-shaped tube, which can also be cons...
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