摘要
为研究开缝对太阳能光电板承受风载的影响,采用雷诺应力模型分析二维不同间隙开缝平板的垂直绕流特性。基于Fluent模拟了高雷诺数下二维方柱绕流,所得阻力系数平均值及斯特劳哈尔数与文献提供的模拟及实验结果一致,验证了模型模拟高雷诺数下钝体绕流的有效性。通过高雷诺数下平板垂直绕流的阻力系数平均值与斯特劳哈尔数的对比,得出不同间隙尺寸对平板阻力系数的影响,计算结果为太阳能光电板的工程设计提供理论支撑。
The 2D flow characteristics of flat plates with different sizes gaps normal to the incoming flow were pres- ented with Reynolds stress equation for studying the influence of wind loads on the solar PV panel with gap. The model was effective to simulate bluff bodies with high Reynolds numbers by consistency of time averaged mean drag coefficients and Strouhal numbers between this paper and other researchers＇ simulated and experimental results of 2D square cylinder with high Reynolds number. The time averaged mean drag coefficients and Strouhal numbers of normal flat plate flow with different sizes gaps were compared. The influences of gap sizes on the drag coefficients of flat plates were obtained. The simulated results can support the design of solar PV panel theoretically.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2013年第2期260-265,共6页
Acta Energiae Solaris Sinica
基金
国家高技术研究发展(863)计划(2011AA05A104)
关键词
垂直平板
气动性能
阻力系数
数值模拟
normal fiat plates
aerodynamic performance
drag coefficient
numerical simulation
