A Surface Flow Field Measurement Method Based on Particle Image Velocimetry
A particle image velocity measurement and measurement method technology, applied in fluid velocity measurement, velocity/acceleration/impact measurement, measurement device, etc., can solve the problems of slow multi-channel data analysis, low measurement efficiency, flow field interference, etc. Convenience and application range, the effect of eliminating manual installation and debugging, and reducing measurement costs
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[0044] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0045] Such as figure 1 As shown, a surface flow field measurement method based on particle image velocimetry, the specific steps are:
[0046] Step 1: Spread tracer particles of unlimited material and size on the surface of the flow field to be measured;
[0047] In the specific implementation, this example uses the scraps of tracer particles used in the test, and uses natural light for lighting, which is almost zero cost and easy to operate.
[0048] Step 2: Set at least one field of view in the flow field to be measured, and use the following method to obtain the flow velocity of each field of view:
[0049] Step 2-1: performing multiple video image sampling on the field of view, and then correcting the field of view to establish a corresponding bird's-eye view;
[0050] In this example, the video image is collecte...
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