Research on the Influence of Building Layout Forms on Wind Environment in Urumqi City Based on CFD Simulation

Author(s):  
Meng Gao ◽  
Lubingbing Zhang ◽  
Pingan Ni ◽  
Yongwang Zhang ◽  
Wanjiang Wang
Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 406 ◽  
Author(s):  
Xiaoyu Ying ◽  
Yanling Wang ◽  
Wenzhe Li ◽  
Ziqiao Liu ◽  
Grace Ding

This paper presents a study of the effects of wind-induced airflow through the urban built layout pattern using statistical analysis. This study investigates the association between typically enclosed office building layout patterns and the wind environment. First of all, this study establishes an ideal site model of 200 m × 200 m and obtains four typical multi-story enclosed office building group layouts, namely the multi-yard parallel opening, the multi-yard returning shape opening, the overall courtyard parallel opening, and the overall courtyard returning shape opening. Then, the natural ventilation performance of different building morphologies is further evaluated via the computational fluid dynamics (CFD) simulation software Phoenics. This study compares wind speed distribution at an outdoor pedestrian height (1.5 m). Finally, the natural ventilation performance corresponding to the four layout forms is obtained, which showed that the outdoor wind environment of the multi-yard type is more comfortable than the overall courtyard type, and the degree of enclosure of the building group is related to the advantages and disadvantages of the outdoor wind environment. The quantitative relevance between building layout and wind environment is examined, according to which the results of an ameliorated layout proposal are presented and assessed by Phoenics. This research could provide a method to create a livable urban wind environment.


2013 ◽  
Vol 433-435 ◽  
pp. 2317-2324
Author(s):  
Kang Li Wu ◽  
I An Hung ◽  
Hsien Te Lin

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.


2021 ◽  
Author(s):  
Gao Meng ◽  
Zhang Lubingbing ◽  
Lu Dongmei ◽  
Zhang Qingke ◽  
Wang Wanjiang

2012 ◽  
Vol 482-484 ◽  
pp. 2592-2595 ◽  
Author(s):  
Zhong Hua Tang ◽  
Ri Chao Liu ◽  
De Bao Lei

Through FLUENT numerical simulation, this paper is aimed on studying the influence of outdoor wind environment on indoor environment. We found that building height, building layout format and opening format in the wall are significant impacted on indoor natural ventilation. At the three-fourth height of building, if the building layout and housing opening is stagger, it can get high-quality indoor natural ventilation and more evenly indoor wind field.


2013 ◽  
Vol 397-400 ◽  
pp. 2420-2425
Author(s):  
Shi Ling Chen ◽  
Jun Lu ◽  
Wei Wei Yu ◽  
Shao Liang Zhang

In order to solve the problems in complex terrain modeling by computational fluid dynamics(CFD) simulation at prophase, such as difficulty in collecting data, tedious modeling process, wasting times and so on. In this paper, combined various commonly digital technology,and the transformation between the network terrain file and CFD (PHOENICS) solid model is realized by using a new set of outdoor complex terrain rapid digital modeling method. Take mountain city -Chongqing as an object to analyses the near-surface wind environment. The method is directly generated by the network terrain data without any screening or simplified. The virtual model can be matched the actual terrain with the extreme. By using the simulation cycle for complex terrain, time will be greatly shortened for urban planning.


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