Inflow turbulence generation methods with large eddy simulation for wind effects on tall buildings

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

31 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)158-175
Journal / PublicationComputers and Fluids
Volume116
Online published6 May 2015
Publication statusPublished - 15 Aug 2015

Abstract

Generation of turbulent inflow conditions matching realistic wind flow characteristics in atmospheric boundary layer (ABL) is essential for accurate predictions of wind effects on buildings and structures using large eddy simulation (LES). It is thus necessary to evaluate the performances of different inflow turbulence generation techniques. In this study, four inflow turbulence generation methods (including three synthetic turbulence methods and the recycling method) were used to simulate wind flows in ABL for LES of wind loadings on a tall building. The advantages and limitations of these inflow turbulence generation methods were discussed through comparisons with available wind tunnel measurements and previous numerical simulation results. Several remedial measures were presented to improve the performances of these inflow turbulence generation methods. The findings of this paper are of use and interest to researchers and designers involved in the wind-resistant design of tall buildings, since one can follow the established procedure to predict the dynamic wind loadings on tall buildings by LES.

Research Area(s)

  • Atmospheric boundary layer (ABL), Inflow turbulence generation, Large eddy simulation (LES), Tall building, Wind loadings