风向角和安装倾角对海上固定式光伏风荷载的影响OA北大核心

The growing demand for renewable energy combined with limited land resources has driven the devel-opment of marine-based photovoltaics,thereby placing greater demands on the structural safety of photovoltaic(PV)platforms.The wind load,which is the main force acting on offshore fixed PVs,plays a crucial role in ensuring the safe operation of the PV structure.In this study,we propose a type of fixed offshore PV support that employs com-putational fluid dynamics combined with a Reynolds-stress turbulence model to analyze the flow field under wind load.We examined the flow-field characteristics around the PV platform at varying wind direction angles and in-stallation angles.The results demonstrate that at a wind direction angle of 0°,the lift coefficient of the structure decreases as the installation angle increases,and the resistance coefficient reaches its minimum value at an installa-tion angle of 10°.At a wind direction angle of 90°,both the lift and drag coefficients remain largely unaffected by changes in the installation angle.However,when the wind direction angle is 180°,the lift coefficient increases,making the structure more prone to overturning.At this angle,both the lift and drag coefficients reach their maxi-mum values at an installation angle of 10°.This study provides valuable data and theoretical insights for the design and optimization of offshore fixed PV supports,providing substantial engineering and practical value for real-world applications.