Movable and portable wind erosion tunnel
A portable, wind tunnel technology, applied in aerodynamic tests, measuring devices, instruments, etc., can solve the problems of low flow field quality, low design wind speed, inconvenient movement, etc., and achieve the effect of stable and uniform flow field and uniform velocity distribution
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[0048] In the present invention, use Pitot tube and 10-way wind speed profiler, can measure wind tunnel entrance wind speed and the wind speed profile characteristic of experimental section; Utilize sand accumulator, can measure the sand transport distribution characteristic of all kinds of original surface sand flow; The high-speed photography system can complete the extraction of sand trajectory, number and speed data in the wind and sand flow. The specific implementation of the three experiments is as follows:
[0049] Measurement of wind speed: if Figure 10 As shown, the 10-way wind speed profiler 11 and the pitot tube 12 are respectively arranged in the wind direction of the glass test section 8 and the floor glass test section 9 sand bed surface 13; the pitot tube 12 is erected at the entrance of the test section, and the 10-way wind speed profiler The instrument 11 is connected to the 10-way wind speed and pressure data acquisition instrument 15 through a hose, and th...
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