Staff View: Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]

Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]

Building overhang is an essential element in the construction of terrace houses in Malaysia to protect occupants from the sunlight, car parking, and social event purposes. However, there is still a lack of study investigating the effect of overhang in a windy area of terrace houses despite its effec...

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Main Authors:	Ibrahim, Muhammad Fatih, Mohamad, Mohd Faizal, Ikegaya, Naoki, Abd Razak, Azli
Format:	Article
Language:	English
Published:	Universiti Teknologi MARA Cawangan Pulau Pinang 2021
Subjects:	Building inspection Building fittings and their installation Construction equipment in building
Online Access:	https://ir.uitm.edu.my/id/eprint/50684/1/50684.pdf https://ir.uitm.edu.my/id/eprint/50684/ https://uppp.uitm.edu.my
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id	my.uitm.ir.50684
record_format	eprints
spelling	my.uitm.ir.506842021-09-20T04:56:34Z https://ir.uitm.edu.my/id/eprint/50684/ Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.] Ibrahim, Muhammad Fatih Mohamad, Mohd Faizal Ikegaya, Naoki Abd Razak, Azli Building inspection Building fittings and their installation Construction equipment in building Building overhang is an essential element in the construction of terrace houses in Malaysia to protect occupants from the sunlight, car parking, and social event purposes. However, there is still a lack of study investigating the effect of overhang in a windy area of terrace houses despite its effect on the flow modification around the building. Therefore, in this paper, a series of computational fluid dynamics (CFD) simulations were performed using Reynolds Average Navier Stokes(RANS) equations and renormalization group (RNG) k – ε as the turbulence closure model. Simulations were conducted on a unity aspect ratio of two-dimensional street canyon representing the low-rise terrace house area in a flat roof shape and three different overhang conditions. The protruding overhangs were significantly modified the in-canyon flow structure as it limited the penetration of the above flow into the canyon as compared to the without overhang case. In addition, spatially-averaged ? of the turbulent kinetic energy depicted that the value decreased within the canyon, demonstrating the independence of the overhang location. It is recommended to perform a further study on the ventilation performance of the street canyon through evaluation of ventilation indices such as ventilation rate, air exchange rate (ACH), and pollutant exchange rate (PCH). Universiti Teknologi MARA Cawangan Pulau Pinang 2021-08 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/50684/1/50684.pdf ID50684 Ibrahim, Muhammad Fatih and Mohamad, Mohd Faizal and Ikegaya, Naoki and Abd Razak, Azli (2021) Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]. ESTEEM Academic Journal, 17: 11. pp. 67-77. ISSN 2289-4934 https://uppp.uitm.edu.my
institution	Universiti Teknologi Mara
building	Tun Abdul Razak Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Mara
content_source	UiTM Institutional Repository
url_provider	http://ir.uitm.edu.my/
language	English
topic	Building inspection Building fittings and their installation Construction equipment in building
spellingShingle	Building inspection Building fittings and their installation Construction equipment in building Ibrahim, Muhammad Fatih Mohamad, Mohd Faizal Ikegaya, Naoki Abd Razak, Azli Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
description	Building overhang is an essential element in the construction of terrace houses in Malaysia to protect occupants from the sunlight, car parking, and social event purposes. However, there is still a lack of study investigating the effect of overhang in a windy area of terrace houses despite its effect on the flow modification around the building. Therefore, in this paper, a series of computational fluid dynamics (CFD) simulations were performed using Reynolds Average Navier Stokes(RANS) equations and renormalization group (RNG) k – ε as the turbulence closure model. Simulations were conducted on a unity aspect ratio of two-dimensional street canyon representing the low-rise terrace house area in a flat roof shape and three different overhang conditions. The protruding overhangs were significantly modified the in-canyon flow structure as it limited the penetration of the above flow into the canyon as compared to the without overhang case. In addition, spatially-averaged ? of the turbulent kinetic energy depicted that the value decreased within the canyon, demonstrating the independence of the overhang location. It is recommended to perform a further study on the ventilation performance of the street canyon through evaluation of ventilation indices such as ventilation rate, air exchange rate (ACH), and pollutant exchange rate (PCH).
format	Article
author	Ibrahim, Muhammad Fatih Mohamad, Mohd Faizal Ikegaya, Naoki Abd Razak, Azli
author_facet	Ibrahim, Muhammad Fatih Mohamad, Mohd Faizal Ikegaya, Naoki Abd Razak, Azli
author_sort	Ibrahim, Muhammad Fatih
title	Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
title_short	Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
title_full	Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
title_fullStr	Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
title_full_unstemmed	Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]
title_sort	numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / muhammad fatih ibrahim …[et al.]
publisher	Universiti Teknologi MARA Cawangan Pulau Pinang
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/50684/1/50684.pdf https://ir.uitm.edu.my/id/eprint/50684/ https://uppp.uitm.edu.my
_version_	1712288405489975296
score	13.211869

Numerical investigation on the effect of building overhang on the flow within idealised two-dimensional street canyon / Muhammad Fatih Ibrahim …[et al.]

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