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First Thermal and Fluids Engineering Summer Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

LARGE EDDY SIMULATION OF THE AIR FLOW THROUGH KUALA LUMPUR CITY CENTRE

DOI: 10.1615/TFESC1.cmd.013244
pages 551-563




Zambri Harun
Department of Mechanical and Materials, The National University of Malaysia, 43600 Bangi, Malaysia

E. Reda
Dept. of Mechanical and Materials Engineering The National University of Malaysia

M. T. Latif
School of Environmental and Natural Resource Sciences Faculty of Science and Technology UKM Bangi 43600, Selangor, Malaysia


KEY WORDS: Atmospheric turbulence boundary layer, heat island, absorption and dissipation

Abstract

A large eddy simulation (LES) was held for the air flow through Kuala Lumpur City Centre (KLCC) to identify the effects of the high-rise buildings on the air movements. A constant free stream velocity of 9 km/h was considered. The results show that the air friction with buildings enhances turbulence through the urban canopy, however, the increased building density damps turbulence. It is also observed that the air exchange rate per hour (ACH) calculated for the pedestrian level to be two thirds the global ACH for the whole domain based on the free stream velocity.

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