Effect of an upstream building on natural ventilation performance of multi-story buildings

Dongjin Cui; Cheuk Ming Mak; Zhengtao Ai

Effect of an upstream building on natural ventilation performance of multi-story buildings

Dongjin Cui, Cheuk Ming Mak, Zhengtao Ai

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

For wind-induced natural ventilation, surrounding building's effect on a target building and the target building's envelopes are two main factors to affect the indoor air flow characteristics. In this work, Computational Fluid Dynamics (CFD) method was employed to model 18 different cases to investigate numerically the effect of an upstream building with two different heights to the target building with two different types of wing walls under two different wind directions (a wind incidence angle α=0° and α=45°). The results show the target building generally has a better natural ventilation performance when the wind obliquely incidents on the building. In addition, the ventilation performance of wing walls is highly dependent on the environment including the approaching wind directions, the orientation of the target building and height of the upstream building.

Original language	English
Title of host publication	Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate
Publisher	International Society of Indoor Air Quality and Climate
Pages	92-98
Number of pages	7
Publication status	Published - 1 Jan 2014
Event	13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong Duration: 7 Jul 2014 → 12 Jul 2014

Conference

Conference	13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
Country/Territory	Hong Kong
City	Hong Kong
Period	7/07/14 → 12/07/14

Keywords

An upstream building
Computational Fluid Dynamics (CFD)
Multi-story buildings
Wind-induced

ASJC Scopus subject areas

Pollution
Building and Construction
Health, Toxicology and Mutagenesis
Computer Science Applications

Cite this

@inproceedings{b46757f731c04e2cb3442d5fd314f578,

title = "Effect of an upstream building on natural ventilation performance of multi-story buildings",

abstract = "For wind-induced natural ventilation, surrounding building's effect on a target building and the target building's envelopes are two main factors to affect the indoor air flow characteristics. In this work, Computational Fluid Dynamics (CFD) method was employed to model 18 different cases to investigate numerically the effect of an upstream building with two different heights to the target building with two different types of wing walls under two different wind directions (a wind incidence angle α=0° and α=45°). The results show the target building generally has a better natural ventilation performance when the wind obliquely incidents on the building. In addition, the ventilation performance of wing walls is highly dependent on the environment including the approaching wind directions, the orientation of the target building and height of the upstream building.",

keywords = "An upstream building, Computational Fluid Dynamics (CFD), Multi-story buildings, Wind-induced",

author = "Dongjin Cui and Mak, {Cheuk Ming} and Zhengtao Ai",

year = "2014",

month = jan,

day = "1",

language = "English",

pages = "92--98",

booktitle = "Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate",

publisher = "International Society of Indoor Air Quality and Climate",

note = "13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 ; Conference date: 07-07-2014 Through 12-07-2014",

}

Cui, D, Mak, CM & Ai, Z 2014, Effect of an upstream building on natural ventilation performance of multi-story buildings. in Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate. International Society of Indoor Air Quality and Climate, pp. 92-98, 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014, Hong Kong, Hong Kong, 7/07/14.

Effect of an upstream building on natural ventilation performance of multi-story buildings. / Cui, Dongjin; Mak, Cheuk Ming; Ai, Zhengtao.
Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate. International Society of Indoor Air Quality and Climate, 2014. p. 92-98.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Effect of an upstream building on natural ventilation performance of multi-story buildings

AU - Cui, Dongjin

AU - Mak, Cheuk Ming

AU - Ai, Zhengtao

PY - 2014/1/1

Y1 - 2014/1/1

N2 - For wind-induced natural ventilation, surrounding building's effect on a target building and the target building's envelopes are two main factors to affect the indoor air flow characteristics. In this work, Computational Fluid Dynamics (CFD) method was employed to model 18 different cases to investigate numerically the effect of an upstream building with two different heights to the target building with two different types of wing walls under two different wind directions (a wind incidence angle α=0° and α=45°). The results show the target building generally has a better natural ventilation performance when the wind obliquely incidents on the building. In addition, the ventilation performance of wing walls is highly dependent on the environment including the approaching wind directions, the orientation of the target building and height of the upstream building.

AB - For wind-induced natural ventilation, surrounding building's effect on a target building and the target building's envelopes are two main factors to affect the indoor air flow characteristics. In this work, Computational Fluid Dynamics (CFD) method was employed to model 18 different cases to investigate numerically the effect of an upstream building with two different heights to the target building with two different types of wing walls under two different wind directions (a wind incidence angle α=0° and α=45°). The results show the target building generally has a better natural ventilation performance when the wind obliquely incidents on the building. In addition, the ventilation performance of wing walls is highly dependent on the environment including the approaching wind directions, the orientation of the target building and height of the upstream building.

KW - An upstream building

KW - Computational Fluid Dynamics (CFD)

KW - Multi-story buildings

KW - Wind-induced

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BT - Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate

PB - International Society of Indoor Air Quality and Climate

T2 - 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014

Y2 - 7 July 2014 through 12 July 2014

ER -

Effect of an upstream building on natural ventilation performance of multi-story buildings

Abstract

Conference

Keywords

ASJC Scopus subject areas

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