Vortex Characteristics of Heliostats’ Surface Wind Pressure under Resting Condition

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Abstract:

Flat rectangular heliostats’ surface wind pressure distribution under resting condition was analyzed via wind tunnel experiment results. The flow field characteristics of the mirror in parallel with the ground were combined to reveal the distribution cause of fluctuating pressure. Phenomena of columnar vortex and conical vortex formed from mirror’s flow field under wind angles 0° and 45° were aimed to explain their internal structure using theory of point vortex model. With power spectrum of peculiar points’ fluctuating wind pressure analyzed, the surface vortex characteristics were further elaborated. The above work revealed heliostats’ surface wind pressure characteristics under resting conditions, and established the theoretical basis of its design study.

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Advanced Materials Research (Volumes 953-954)

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1463-1466

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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