纵向间距对光伏阵列风荷载影响的数值模拟研究
Numerical Simulation Study on Effect of Longitudinal Spacing on Wind Load on Photovoltaic Array
采用计算流体动力学(Computational Fluid Dynamics,CFD)方法,分析了纵向间距对光伏阵列的流场结构和光伏板表面风荷载的影响。通过数值模拟结果与风洞试验结果的对比,验证了数值模拟方法的准确性。结果表明,纵向间距对第一排光伏板尾流区的流场结构有着较为明显的影响,这导致第二排光伏板的风荷载对纵向间距最为敏感。当纵向间距较小时,第二排光伏板有可能会承受较大的扭矩。第三排至第八排光伏板的风荷载受纵向间距的影响相对较小,总体上随纵向间距的减小而减小。
A computational fluid dynamics (CFD) method is employed to analyze the influence of longitudinal spacing on the flow field around a photovoltaic array and the resulting wind load on the panels. The validity of the numerical simulation is confirmed through comparison with wind tunnel test results. The findings indicate that longitudinal spacing significantly affects the wake flow field behind the first row, causing the wind load on the second row to be the most sensitive to changes in spacing. Moreover, it is observed that the second row can experience considerable torque when the longitudinal spacing is small. In contrast, the wind load on the third to the eighth rows is only marginally influenced by the longitudinal spacing and generally decreases as the spacing is reduced.
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国家自然科学基金资助项目(52078380)
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