CFD Simulation for Wind Load on Octagonal Tall Buildings
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : Dr S.K. Verma, A.K Roy, Sunil Lather, Manoj Sood
|DOI : 10.14445/22315381/IJETT-V24P239|
Dr S.K. Verma, A.K Roy, Sunil Lather, Manoj Sood"CFD Simulation for Wind Load on Octagonal Tall Buildings", International Journal of Engineering Trends and Technology (IJETT), V24(4),211-216 June 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Lateral loads i.e. wind load, seismic load, govern the design of tall buildings. Wind code IS 875 (PART-3rd) provides the pressure coefficients (CP) only at 0º and 90º wind incidence angles and only for few standard cases.Therefore, experimental studies become important and wind tunnel experiment is carried out to measure wind loads on the models of tall buildings at different wind incident angles. CFD offers a very powerful alternative to predict the wind related phenomena on buildings or different kind of structures. A software package, FLUENT-14 (ANSYS 14.0) is used for CFD analysis. CFD analysis is carried out considering the same parameters as used in the experimental study.The buildings chosen in present study is octagonal in plan. Mean area weighted average wind pressures on the faces of the building models are measured in order to study the effect of varying wind incident angles namely 0º, 15º and 30º on wind pressure distribution.
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Tall building; computational fluid dynamics (CFD); pressure coefficients; wind tunnel testing; wind incidence angle