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Wind and Structures Volume 19, Number 5, November 2014 , pages 523-540 DOI: https://doi.org/10.12989/was.2014.19.5.523 |
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Wind induced pressure on \'Y\' plan shape tall building |
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Sourav Mukherjee, Souvik Chakraborty, Sujit Kumar Dalui and Ashok Kumar Ahuja
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| Abstract | ||
| This paper presents a comprehensive study of pressure developed on different faces of a \'Y\' plan shape tall building using both numerical and experimental means. The experiment has been conducted in boundary layer wind tunnel located at Indian Institute of Technology Roorkee, India for flow condition corresponding to terrain category II of IS:875 (Part 3) – 1987, at a mean wind velocity of 10 m/s. Numerical study has been carried out under similar condition using computational fluid dynamics (CFD) package of ANSYS, namely ANSYS CFX. Two turbulence models, viz., k-e and Shear Stress Transport (SST) have been used. Good conformity among the numerical and experimental results have been observed with SST model yielding results of higher magnitude. Peculiar pressure distribution on certain faces has been observed due to interference effect. Furthermore, flow pattern around the model has also been studied to explain the phenomenon occurring around the model. | ||
| Key Words | ||
| computational fluid dynamics (CFD); k-e , shear stress transport (SST); interference effect; wind incidence angle; mean pressure coefficient | ||
| Address | ||
| Sourav Mukherjee and Souvik Chakraborty: Bengal Engineering and Science University Shibpur, India Sujit Kumar Dalui: Faculty of Engineering (Civil), Bengal Engineering and Science University, Shibpur, India Ashok Kumar Ahuja: Faculty of Engineering (Civil), Indian Institute of Technology Roorkee, India | ||