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.
Dodson, MG. An Historical and Applied Aerodynamic Study of the Wright Brothers' Wind Tunnel Test Program and Application to Successful Manned Flight. US Naval Academy Technical Report[R]. 2005, USNA-334 .
[3]
Holmes, J.D.. Wind Loading on Structures[M]. Spon Press. 2001.