At present, the study of wind tunnel mainly focuses on the study of sand-driving wind. There are no requirements of the model scale and the density of the observation points. With the help of wind tunnel of Sha Potou dessert experiment station of Cold and Arid Regions Environmental and Engineering Research Institute, CAS in Ni Xia province, this paper studied the characteristic of wind speed in the wind tunnel cavity and opencut tunnel of sand prevention(10cm, 20cm, 30cm), the results shows that:
(1) T...