Enhancement of city breathability with half open spaces in ideal urban street canyons
- Resource Type
- Authors
- Yu Hsuan Juan; Chih-yung Wen; An-Shik Yang
- Source
- Building and Environment. 112:322-336
- Subject
- Canyon
Scaling law
geography
Environmental Engineering
Ideal (set theory)
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
business.industry
020209 energy
Geography, Planning and Development
Flow (psychology)
02 engineering and technology
Building and Construction
Pedestrian
Computational fluid dynamics
01 natural sciences
Civil engineering
Visualization
Urban planning
0202 electrical engineering, electronic engineering, information engineering
Environmental science
business
0105 earth and related environmental sciences
Civil and Structural Engineering
- Language
- ISSN
- 0360-1323
The design guidelines for assessing the wind environment at the pedestrian level have become increasingly important in urban planning over the past few decades. The purpose of this study is therefore to conduct computational fluid dynamics simulations to examine the flow behavior of the aeration around the buildings, with and without an arcade design in an ideal situation in urban street canyons. The results suggest the effectiveness of adopting an arcade design to sustain a stable wind environment and improve the flow aeration over areas with urban street canyons. Computations are also carried out to examine the ventilation performance of the pedestrian pathway layer by varying the parameters of building height, canyon width, and height and width of the arcade. The simulated results are then further processed by using a multivariable regression analysis on a group of dimensionless parameters as well as visualization with the scaling law on arcade structures to facilitate a design for arcade buildings that would enhance city breathability. This correlation which uses multiple dimensionless parameters will act as a reference for future arcade designs.