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Thermophysics and Aeromechanics

2017 year, number 1

Numerical study of interference effects in atmospheric air flow past a group of intricately shaped buildings

S.A. Valger1, N.N. Fedorova1,2, and A.V. Fedorov1,2
1Novosibirsk State University of Architecture and Civil Engineering, Novosibirsk, Russia
2Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
E-mail: svetlanavalger@gmail.com
Keywords: wind actions, interference effects, separated flows, turbulence, numerical methods
Pages: 35–44

Abstract

A numerical study of the aerodynamics of a building of a complex shape has been performed taking into account the location of surrounding buildings. Simulation data based on full mathematical models of continuum mechanics have allowed us to reveal the spatial structure of the turbulent separated atmospheric flow in the neigh-borhood of the building, and to evaluate the wind load exerted on the building. A comparison between the calculated data for the air flow past the examined building located in a group of other buildings and past the same building at its isolated location was performed. Based on the obtained data, the impact of interference effects on the aerodynamics of buildings in urban areas was evaluated. A comparison of calculated with experimental data was performed. A satisfactory agreement between the two datasets was obtained.

DOI: 10.1134/S0869864317010048