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By installing the four-hole probe on the hood of a vehicle and some pressure taps on the surface of the vehicle to collect the wind flow parameters such as velocity, yaw angle, turbulent intensity, turbulent length scale, spectra etc.. In this study, transient wind characteristics on two test sites (Hainan Automobile Proving Ground and Yancheng Automobile Proving Ground) are investigated. The results showed that there are significant differences in the wind flow characteristics between the test site and wind tunnel experiments and numerical simulations. The wind velocity in the test site fluctuates within the range of ±4 m/s, the yaw angle fluctuates between -5° and 5°, and the yaw angle distribution follows the standard normal distribution, the turbulence intensity is almost in the range of 2%~10%, the turbulent length scale is 2~20 m, and the measured spectra show a good correlation to the empirical von Kármán spectra.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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