Correlations of Aerodynamic Pressures or Prediction of Across Wind Response of Structure
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Correlations of Aerodynamic Pressures or Prediction of Across Wind Response of Structure
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| Creator |
Lakshmanan, N.
Arunachalam, S. Selvi Rajan, S. Ramesh Babu, G. Shanmugasundaram, J. |
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| Subject |
Across-wind response
Vortex shedding Lateral turbulence Correlation length Aerodynamic pressures |
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| Description |
Correlation length is one of the four important aerodynamic parameters, which is required for prediction of across-wind response of a structure subjected to vortex shedding. Pressure measurement studies on models of three structures with different plan shapes- a circular, an octagonal and an irregular shape, were conducted under simulated open terrain conditions using the boundary layer wind tunnel. This paper presents experimental details and test results on pressure distributions and measurement of correlation lengths. It is shown that for the circular and octagonal models studied, the modified value of rms lift coefficient, C0L ;V is found to be close to 0.088. Further, for the irregular shaped tower block model also, for the wind angle where the mean across wind force is very small, the value of C0L;V is found to be around 0.088. Further research is necessary for validating the value of 0.088 for structures with other cross-sectional shapes
This paper presents experimental details and test results on pressure distributions and measurement of correlation lengths. It is shown that for the circular and octagonal models studied, the modified value of rms lift coefficient, C0 L;V is found to be close to 0.088. Further, for the irregular shaped tower block model also, for the wind angle where the mean across wind force is very small, the value of C0 L;V is found to be around 0.088. Further research is necessary for validating the value of 0.088 for structures with other cross-sectional shapes. |
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| Date |
2009
2009 2002 |
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| Type |
Journal article
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| Identifier |
Journal of Wind Engineering and Industrial Aerodynamics, Vol.90, 2002, p.941–960
http://hdl.handle.net/123456789/67 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
Elsevier
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