Two-dimensional numerical simulation of wind driven ventilation across a building enclosure with two free apertures on the rear side: Vortex shedding and “pumping flow mechanism”

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成果类型：

期刊论文

作者：

Zhong, Huai-Yu;Zhang, Dong-Dong;Liu, Di;Zhao, Fu-Yun*;Li, Yuguo;...

通讯作者：

Zhao, Fu-Yun

作者机构：

[Zhong, Huai-Yu; Zhao, Fu-Yun; Zhang, Dong-Dong] Wuhan Univ, Minist Educ, Key Lab Hydraul Machinery Transients, Wuhan, Hubei, Peoples R China.

[Zhong, Huai-Yu; Zhao, Fu-Yun; Zhang, Dong-Dong] Wuhan Univ, Hubei Key Lab Waterjet Theory & New Technol, Wuhan, Hubei, Peoples R China.

[Zhong, Huai-Yu; Zhao, Fu-Yun; Zhang, Dong-Dong] Wuhan Univ, Sch Power & Mech Engn, Dong Hu Southern Rd, Wuhan 430072, Hubei, Peoples R China.

[Liu, Di] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao, Shandong, Peoples R China.

[Li, Yuguo] Univ Hong Kong, Dept Mech Engn, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China.

通讯机构：

[Zhao, Fu-Yun] W

Wuhan Univ, Sch Power & Mech Engn, Dong Hu Southern Rd, Wuhan 430072, Hubei, Peoples R China.

语种：

英文

关键词：

Computer simulation;Enclosures;Flow velocity;Navier Stokes equations;Numerical models;Pumps;Reynolds number;Ventilation;Vortex flow;Vortex shedding;Walls (structural partitions);Wind;Building enclosure;Natural ventilation;Numerical investigations;Pressure correction;Pumping mechanism;Reynolds-averaged-navier-stokes approaches;Two-dimensional numerical simulation;Ventilation performance;Computational fluid dynamics

期刊：

Journal of Wind Engineering and Industrial Aerodynamics

ISSN：

0167-6105

年：

2018

卷：

179

页码：

449-462

DOI：

10.1016/j.jweia.2018.07.002

基金类别：

This research was financially supported by the Natural Science Foundation of China (NSFC Grant No. 51778504 ; Grant No. 51304233 ; NSFC Grant No. 51208192 ), Shenzhen Basic Research Project (Grant No. JCYJ20160523160857948 ), Fundamental Research Funds for the Central Universities (Grant No. 2042016kf0136 ), and National Key Basic Research Program of China (973 Program, Grant No. 2014CB239203 ). Both Prof. Fu-Yun Zhao and Prof. Han-Qing Wang would also like to acknowledge the support from the Collaborative Innovation Center for Building Energy Conservation and Environment Control, Hunan Province, China .

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

This paper investigates the single-sided wind driven natural ventilation with two apertures on the rear wall, regarding different horizontal aperture separations, magnitudes of incoming wind speed and various side ratios (L/D, length/width). In the present work, CFD simulations are performed with Reynolds-Averaged Navier-Stokes (RANS) approach, and pressure correction linked equation is adopted to provide closure. The simulation results indicate that wind flow behind the rear wall is essentially driven by the pumping mechanism due to vortex she...

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Two-dimensional numerical simulation of wind driven ventilation across a building enclosure with two free apertures on the rear side: Vortex shedding and “pumping flow mechanism”

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