To clarify the influence of near-ground wind fields on tracking photovoltaic (PV) structures, wind tunnel tests and Computational Fluid Dynamics (CFD) simulations are conducted in this paper for the analyses of shielding effects and shape factors under different tilt angles, wind direction angle, and height of PV arrays. Building upon this analysis, the paper investigates the impact of shielding effects of multi-row PV arrays on the values of shape coefficient under different wind direction angles. Results show that the surface wind pressure of a single-row PV component follows a trapezoidal distribution. For multi-row PV arrays, as the tilt angle increases, the shielding effects increase significantly. The shape coefficients tend to be stable when the number of upstream PV arrays becomes large. The height of their heights has a certain impact on the shape coefficient of both individual PV components and arrays.
MAW Y, CHAIX B, LIUQ K,et al .Study on effect of bottom flow obstruction on wind load of solar photovoltaic panels[J].Building Structure, 2019, 49(2): 129-134.(in Chinese)
ZHONGM, LONGH N, ZHOUZ X,et al .Wind load study of solar photovoltaic panels in grassland terrain based on wind tunnel test[J].Journal of Natural Disasters,2023,32(3):64-73.(in Chinese)
GONGM, OUT Y. Research on wind tunnel test of shape coefficient of wind load for photovoltaic module with single roof[J]. Anhui Architecture,2015,22(6):183-184.(in Chinese)
ZHANGX S, LID, WUX G,et al .Wind tunnel test study on influence of building parapet on wind load characteristics of photovoltaic panel[J].Building Structure,2022, 52(14):115-123.(in Chinese)
[15]
SHADEMANM, HANGANH .Wind loading on solar panels at different inclination angles[C]//The Fifth International Symposium on Computational Wind Engineering.North Carolina,USA. 2010.
WUY Z, ZOUL J. The calculation of spacing between solar cell array in photovoltaic pouler station[J]. Energy Engineering, 2011(1): 39-40.(in Chinese)
[22]
WARSIDOW P, BITSUAMLAKG T, BARATAJ,et al .Influence of spacing parameters on the wind loading of solar array[J].Journal of Fluids and Structures, 2014, 48: 295-315.
[23]
STATHOPOULOST, ZISISI, XYPNITOUE .Local and overall wind pressure and force coefficients for solar panels[J].Journal of Wind Engineering and Industrial Aerodynamics,2014,125:195-206.
[24]
AGARWALA, IRTAZAH, ZAMEELA. Numerical study of lift and drag coefficients on a ground-mounted photo-voltaic solar panel[J]. Materials Today:Proceedings, 2017, 4(9): 9822-9827.
[25]
JUBAYERC M, HANGANH .A numerical approach to the investigation of wind loading on an array of ground mounted solar photovoltaic (PV) panels[J].Journal of Wind Engineering and Industrial Aerodynamics, 2016, 153: 60-70.
[26]
ALYA M, BITSUAMLAKG. Aerodynamics of ground-mounted solar panels: test model scale effects[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2013, 123: 250-260.
[27]
YUY .Numerical simulation of wind load on roof mounted solar panels[D].Windsor:University of Windsor,2012.
GAOL, DOUZ Z, BAIH,et al .Analysis of influence factors for wind lode of pv module[J].Acta Energiae Solaris Sinica,2016,37(8):1931-1937.(in Chinese)
[30]
CHEVALIERH L, NORTOND J. Wind loads on solar collector panels and support structure[R]. Texas A&M University, Aerospace Engineering Department,1979.
[31]
CAOJ X, YOSHIDAA, SAHAP K,et al. Wind loading characteristics of solar arrays mounted on flat roofs[J]. Journal of Wind Engineering and Industrial Aerodynamics,2013,123:214-225.
[32]
孙光华 .不规则光伏板阵列群风荷载体型系数研究[D].西安:西安建筑科技大学,2017.
[33]
SUNG H .Study on wind load structural shape coefficient of irregular photovoltaic array[D].Xi’an:Xi’an University of Architecture and Technology,2017.(in Chinese)