Effects of different poses and wind speeds on flow field of dish solar concentrator based on virtual wind tunnel experiment with constant wind

• Published in: Journal of Central South University Vol. 25; no. 8; pp. 1948 - 1957
• Main Authors: Liu, Guan-lin, E, Jia-qiang, Liu, Teng, Zuo, Wei, Zhang, Qing-ling
• Format: Journal Article
• Language: English
• Published: Changsha Central South University 01.08.2018; Springer Nature B.V
• Subjects: Concentrators; Engineering; Failure analysis; Load distribution (forces); Mathematical models; Metallic Materials; Pressure distribution; Stiffness; Stress concentration; Three dimensional models; Velocity distribution; Wind pressure; Wind tunnels; fluid—solid interaction; concentrator; 聚光器; 压力分布; pressure distribution; 流速分布; 流固耦合; 虚拟风洞实验; velocity distribution; virtual wind tunnel experiment
• ISSN: 2095-2899; 2227-5223
• DOI: 10.1007/s11771-018-3885-6

In order to improve structure performance of the dish solar concentrator, a three-dimensional model of dish solar concentrator was established based on the high-precision numerical algorithms. And a virtual wind tunnel experiment with constant wind is adopted to investigate the pressure distribution of the reflective surface, velocity distribution of the fluid domain for the dish solar concentrator in different poses and wind speeds distribution. Some results about wind pressure distribution before and after dish solar concentrator surface and wind load velocity distribution in the entire fluid domain had been obtained. In particular, it is necessary to point out that the stiffness at the center of the dish solar concentrator should be relatively raised. The results can provide a theoretical basis for the improvement of solar concentrator dish structure as well as the failure analysis of dish solar concentrator in engineering practice.