Application of CFD Simulations in Studying Outdoor Wind Environment in Different Community Building Layouts and Open Space Designs

Abstract:

This study explored the ventilation conditions of community atriums for selected housing prototypes in Tainan City, Taiwan. Employing field surveys and CFD simulations, the atrium ventilation of the selected housing building layouts were studied and compared. Through the CFD simulation using the common wind direction in the autumn of the study region, this study found that among the four community building layouts selected, the atrium space of the double-side opening townhouse building layout has the best outdoor ventilation. In addition, the study also revealed that when the arrangement of the building layout and the openings of the atrium are coordinated with the local wind environment, the outdoor ventilation will be significantly improved. Finally, this paper provides suggestions for building layouts and the design of community open space in order to enhances the ventilation of community atrium and its user comfort.

• Periodical: Applied Mechanics and Materials (Volumes 433-435)
• Pages: 2317-2324
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.433-435.2317
• Online since: October 2013
• Authors: Kang Li Wu, I An Hung, Hsien Te Lin
• Keywords: CFD, Community Building Layout, Community Open Space, Outdoor Ventilation

References

[1] Y. Ishida, S. Kato, H. Huang and R. Oska, Study on wind environment in urban blocks by CFD analysis wind velocity over street. Institute of industrial science, University of Tokyo, Japan, (2005).

[2] B. Givoni. Climate Considerations in Building and Urban Design. USA: International Thomson Publishing, Inc. (1998).

[3] X. Xie, H. Zhen and W. Jiasong. The impact of urban street layout on local atmospheric environment. Building and Environment, 41. 10 (2006): 1352-1363.

DOI: 10.1016/j.buildenv.2005.05.028

[4] Schlueter, Arno, and Frank Thesseling. Building information model based on energy/exergy performance assessment in early design stages. Automation in Construction 18. 2 (2009): 153-163.

DOI: 10.1016/j.autcon.2008.07.003

[5] G. Capeluto, Isaac, A. Yezioro, and E. Shaviv. Climatic aspects in urban design—a case study. Building and Environment 38. 6 (2003): 827-835.

DOI: 10.1016/s0360-1323(02)00063-x

[6] C. Yuan, and Ng Edward. Building porosity for better urban ventilation in high-density cities–A computational parametric study. Building and Environment 50 (2012): 176-189.

DOI: 10.1016/j.buildenv.2011.10.023

[7] P. Moonen, V. Dorer, and J. Carmeliet. Evaluation of the ventilation potential of courtyards and urban street canyons using RANS and LES., Journal of Wind Engineering and Industrial Aerodynamics 99. 4 (2011): 414-423.

DOI: 10.1016/j.jweia.2010.12.012

[8] O. MASAYUKI, et al. Development of a Wind Environment Database in Tokyo for a Comprehensive Assessment System for Heat Island Relaxation Measures. Journal of Wind Engineering and Industrial Aerodynamics, 108 (2006): 113-116.

DOI: 10.1016/j.jweia.2008.02.023

[9] Wind Engineering Institute Co., Ltd. The knowledge of wind around the building (new edition). Japan: Kajima Institute Publishing Co., Ltd (1992). (In Japanese).