Numerical Validation for Wind Flow Field in a Street Canyon under Unstable Atmospheric Condition

Abstract:

This paper reports on the validation study of a commercial computational fluid dynamics program, ANSYS FLUENT v14. The purpose of the study was to determine the best turbulent model that can reproduce appropriately the wind flow field of turbulent flow in street canyon under different thermal atmospheric condition. Standard k-ε (SKE) and Large Eddy Simulation (LES) techniques were chosen as the turbulent model for the validation study. It was found that LES could well calculate a complex simulation involving isothermal flow and thermal flow with different thermal intensity and different heat location in street canyon.

• Periodical: Applied Mechanics and Materials (Volume 695)
• Pages: 671-675
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.695.671
• Online since: November 2014
• Authors: Afiq Witri Muhammad Yazid, Nor Azwadi Che Sidik, Salim Mohamed Salim, Shuhaimi Mansor
• Keywords: LES, RANS, Street Canyon, Thermal Flow, Turbulence Models

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