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Wind and Structures Volume 16, Number 2, February 2013 , pages 137-156 DOI: https://doi.org/10.12989/was.2013.16.2.137 |
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The influence of model surface roughness on wind loads of the RC chimney by comparing the full-scale measurements and wind tunnel simulations |
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Chern-Hwa Chen, Cheng-Hsin Chang and Yuh-Yi Lin
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| Abstract | ||
| A wind tunnel test of a scaled-down model and field measurement were effective methods for elucidating the aerodynamic behavior of a chimney under a wind load. Therefore, the relationship between the results of the wind tunnel test and the field measurement had to be determined. Accordingly, the set-up and testing method in the wind tunnel had to be modified from the field measurement to simulate the real behavior of a chimney under the wind flow with a larger Reynolds number. It enabled the results of the wind tunnel tests to be correlated with the field measurement. The model surface roughness and different turbulence intensity flows were added to the test. The simulated results of the wind tunnel test agreed with the full-scale measurements in the mean surface pressure distribution behavior. | ||
| Key Words | ||
| chimney; full-scale measurement; Reynolds number; pressure; surface roughness; wind tunnel test | ||
| Address | ||
| Chern-Hwa Chen : 1Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung, Taiwan Cheng-Hsin Chang and Yuh-Yi Lin : Department of Civil Engineering, Tamkang University, New Taipei City, Taiwan | ||