Numerical study on surface sand fixation effect of desert photovoltaic power station
A simplified flat surface photovoltaic array model was established,N-S equation was solved by RANS model in Fluent software to simulate the photovoltaic field flow field,and the photovoltaic array flow field and surface shear stress distribution in photovoltaic power stations in desert areas were studied.The flow field and surface shear stress distribution of multi-row photovoltaic arrays under different wind direction were analyzed,and the characteristics of protected area formed by photovoltaic arrays and the areas that need to strengthen wind erosion resistance in desert photovoltaic power stations were discussed.The results show that the flow field in PV field is significantly different with different wind direction,and the difference is mainly reflected in the area around photovoltaic field when the wind direction is±90º,and the protected area is large.When the wind direction is±45º,the wind blocking effect of the photovoltaic panel is significantly reduced,and the scope of the protected area is reduced,so the key areas of sand prevention can be determined according to the local main wind direction.It can provide reference for the high efficiency and low cost scientific design of desert photovoltaic power station wind prevention and sand fixation.
photovoltaic arraydesert areassurface shear stressfluid startingprotected area
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