Abstract：Drawing on the ideas of goose array theory, a herringbone photovoltaic array was designed. In order to reveal its windproof effect, the wind load resistance and wind reduction of the case that the installation inclination, height, array angle and spacing were 30°, 0.20 m, 30° and 2 m respectively, were investigated by using the SST k-ω turbulence model and unsteady Reynolds-Average Navier-Stokes(RANS)approach. The results show that at wind speeds of 10 m/s and 15 m/s, the first row of photovoltaic array is subject to the maximum wind pressure in the windward direction, the 2nd—5th exhaust pressure is significantly less than the first row and decreases row by row, and the array has a goose array effect. The monitoring point |P| is divided into different wind pressure areas at intervals of 20 Pa, and it is found that a local reinforcement method can be adopted to improve the overall wind resistance of the photovoltaic array. In the vertical direction, the incoming flow forms a near-pyramid-shaped wind speed attenuation area behind the array, and the wind speed distribution shows medium variability. In the process of increasing the height above ground from 0.20 m to 0.70 m, due to the diversion effect of the array, the residual coefficient of the average wind speed in the calculation domain gradually increases, and the coefficient of variation gradually decreases, so that the wind protection effect of the photovoltaic array in the calculation domain weakens as the elevation increases. It provides theoretical guidance for the layout of Gobi herringbone photovoltaic arrays and agricultural development.
