STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF HELIOSTAT FIELDS BASED ON WIND TUNNEL TEST

Yang Zihang; Dai Zengli; Li Songgang; Liu Yangzhao; Chang Ying; Dai Kaoshan

doi:10.19912/j.0254-0096.tynxb.2024-1501

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 136-145. DOI: 10.19912/j.0254-0096.tynxb.2024-1501

STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF HELIOSTAT FIELDS BASED ON WIND TUNNEL TEST

Yang Zihang¹, Dai Zengli², Li Songgang², Liu Yangzhao¹, Chang Ying³, Dai Kaoshan^1,3

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Abstract

A heliostat field is selected as the research object. Spatial distributions of surface pressure coefficients of heliostat surfaces at different positions within the field under typical working conditions are obtained through a wind tunnel test on a scaled model of the heliostat field. Wind vibration coefficients of heliostats at various positions in the field are calculated, and the effects of pitch angle and wind deviation angle on these coefficients are comprehensively discussed. The results indicate that the distribution patterns of wind pressure and wind vibration coefficients at different positions exhibit a characteristic “regional” feature. The entire field can be qualitatively divided into two regions： the edge field and the inner field, for an intuitive overall understanding. It is also found that under specific wind deviation angles, the wind vibration coefficients at certain positions within the inner field significantly decrease, exhibiting a characteristic “corner effect”. Finally, based on the strong correlation between wind vibration and wind pressure coefficients, an empirical formula for the rapid estimation of wind vibration coefficients at different positions is proposed.

Key words

CSP / heliostats / wind tunnels / wind effects / wind pressure coefficient / finite element method / wind vibration coefficient

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Yang Zihang, Dai Zengli, Li Songgang, Liu Yangzhao, Chang Ying, Dai Kaoshan. STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF HELIOSTAT FIELDS BASED ON WIND TUNNEL TEST[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 136-145 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1501

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