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| Meteorological low-speed wind tunnel parameter and performance test |
| Han Shuxin, Sun Renxia, Wei Xinhua |
| Atmospheric Sounding Technology Safeguard Center of Heilongjiang Province, Harbin 150030, China |
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Abstract According to the parameter fitting of frequency-velocity based on the two different wind velocity range, corrected anew the meteorological wind tunnel’s parameter, and tested the airflow uniformity and wind velocity stability of low-speed wind tunnel. When the wind velocity was relatively lower, the tunnel wind field is belong to laminar and buffer layers. However, when the wind velocity was higher, the field is belong to turbulence layer. At the wind velocity range of 0-1m/s, especially below 0.5m/s, the coefficient of variation (C.V) and the relative deviation ( δ ) of wind velocity were kept higher level, the tunnel wind field is affected by the varying environment. At the wind velocity range of 1-30m/s, C.V and δ of wind velocity were kept lower level. This suggests that the tunnel wind field is insensitive to the change of environment with the velocity improving.
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2013, Vol. 30 
