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Wind and Structures Volume 17, Number 5, November 2013 , pages 537-552 DOI: https://doi.org/10.12989/was.2013.17.5.537 |
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Effect of a vertical guide plate on the wind loading of an inclined flat plate |
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Kung-Ming Chung, Chin-Cheng Chou, Keh-Chin Chang and Yi-Jun Chen
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| Abstract | ||
| Wind tunnel experiments were performed to study the wind loads on an inclined flat plate with and without a guide plate. Highly turbulent flow, which corresponded to free-stream turbulence intensity on the flat roof of low-rise buildings, was produced by a turbulence generation grid at the inlet of the test section. The test model could represent a typical solar collector panel of a solar water heater. There are up-stream movements of the separation bubble and side-edge vortices, more intense fluctuating pressure and a higher bending moment in the turbulent flow. A guide plate would result in higher lift coefficient, particularly with an increased projected area ratio of a guide plate to an inclined flat plate. The value of lift coefficient is considerably lower with increased free-stream turbulent intensity. | ||
| Key Words | ||
| solar collector; inclined flat plate; turbulence intensity; guide plate; wind loads | ||
| Address | ||
| Kung-Ming Chung : Aerospace Science and Technology Research Center, National Cheng Kung University, Taiwan Chin-Cheng Chou, Keh-Chin Chang and Yi-Jun Chen: 2Department of Aeronautics and Astronautics, National Cheng Kung University, Taiwan | ||