Study on average wind load and flow around characteristics on Steel frameof large dish solar energy
YAN Jian1,2,PENG You-duo1,2,LONG Dong-ping2,HE Yi1,2,MA Jun1,2
1. Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Xiangtan 411201, China;2. School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
Based on Fluent 6.3 software, the Reynolds mean Navier-Stokes equations were selected to simulate 3D steady wind field of complex dish frame. Computational domain model which conform to unrestraint flow field and grid independent solutions was built by applying multi-angle wind modeling methods with inner domain subarea on cylindrical. And, 45 group results of total wind load, wind pressure distribution and flow around characteristic were acquired by simulation. Change regulations of wind load with different working condition were analyzed, and, the reasonableness of simulation results were verified by qualitative comparative analysis between load curve and parabolic radar antenna wind tunnel test. The ratio of condenser mirror load on total wind load of frame was explored by adopting dimensionless method. Condenser shape factor distribution and extremes of each subarea load were acquired under typical working conditions. And, load generating mechanism was revealed by further analysis of the flow around characteristics, which provide a load basis on wind-resistant design of the whole structure of dish photo-thermal solar energy.
颜健;彭佑多;龙东平;何轶;马俊;. 大型碟式太阳能钢构机架平均风荷载及绕流特性研究[J]. , 2014, 33(24): 45-53.
YAN Jian;PENG You-duo;LONG Dong-ping;HE Yi;MA Jun;. Study on average wind load and flow around characteristics on Steel frameof large dish solar energy . , 2014, 33(24): 45-53.