基于恒风速虚拟风洞实验的碟式太阳能聚光器风动载荷  

Wind loadings on dish solar concentrator based on virtual wind tunnel experiment with constant wind

作　　者：鄂加强[1,2] 王红林[2] 刘腾[1,2] 左威[2] 张庆玲[2] 苏秀超 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082 [2]湖南大学机械与运载工程学院,湖南长沙410082

出　　处：《中南大学学报（自然科学版）》2015年第12期4700-4706,共7页Journal of Central South University:Science and Technology

基　　金：国家留学基金资助项目(201208430262);武器装备预研重点项目(9140A2011QT4801)~~

摘　　要：针对碟式太阳能聚光器最佳避风姿势问题,采用恒风速虚拟风洞实验方法对不同姿态和不同风速下的碟式太阳能聚光器风动载荷进行仿真分析。研究结果表明:在靠近来流方向处碟式太阳能聚光器总压力较大,而远离来流方向处其总压力相对较小,且碟式太阳能聚光器反射面的最大压强随恒风速的增大而不断增加;当风速由v=15 m/s增大到v=25 m/s时,碟式太阳能聚光器所受风力和风力矩的最大幅值至少增加了110%。In order to solve the problem of the optimal shelter posture of dish solar concentrator, virtual wind tunnel experimental with constant wind was implemented for simulation analysis of the aerodynamic load on dish solar concentrator at different attitudes and wind speeds. The results show that the dish solar concentrator total pressure close to the flow direction is relatively higher and the dish solar concentrator total pressure away from the flow direction is relatively lower. The maximum pressure of dish solar concentrator reflective surface increases with the addition of constant wind speed. The amplitudes of the wind force and torque on the dish solar concentrator increase by 110% at least when the wind speed increases from 15 m/s to 25 m/s.

关 键 词：聚光器 虚拟风洞实验 风动载荷 太阳能 

分 类 号：TK514[动力工程及工程热物理—热能工程]