Optimization procedures for enhancement of city breathability using arcade design in a realistic high-rise urban area

Yu Hsuan Juan, An Shik Yang, Chih Yung Wen, Yee Ting Lee, Po Chun Wang

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)
2 Downloads (Pure)

Abstract

Concern of city breathability has increased in recent project planning activities. Most previous studies in the literature have demonstrated that it is possible to improve urban ventilation efficiency by manipulating the arrangement of buildings with the integration of half open spaces into building configurations. In considering the arcade design which is a conventional type of half open space, this paper first focuses on examining the ventilation performance in a realistic high-rise urban area and its associated city breathability in terms of the ACH⋆ (defined as the ratio of the ACH to a characteristic frequency, determined by the reference velocity of the far upstream free flow divided by the reference building height) with or without incorporating an arcade into the object buildings. On-site measurements are conducted to validate the computational model. Then, the optimization procedures are presented, in which correlations from multivariable regression from our earlier study on generic urban street canyons are applied as the design guidelines for the arcade to maximize the ACH⋆. Computational fluid dynamics simulations are extended to take into consideration buildings with an arcade of optimum height and width in actual urban canyons to determine the effectiveness of the optimization procedures used to design arcade buildings for enhancing city breathability.

Original languageEnglish
Pages (from-to)247-261
Number of pages15
JournalBuilding and Environment
Volume121
DOIs
Publication statusPublished - 15 Aug 2017
Externally publishedYes

Fingerprint

building
urban area
open space
half space
ventilation
street canyon
architectural design
Ventilation
computational fluid dynamics
canyon
project planning
Computational fluid dynamics
simulation
city
Planning
regression
efficiency
Computer simulation
performance
project

Keywords

  • Arcade design
  • City breathability
  • Computational fluid dynamics
  • Half open spaces
  • Optimization procedure
  • Urban street canyons

Cite this

Juan, Yu Hsuan ; Yang, An Shik ; Wen, Chih Yung ; Lee, Yee Ting ; Wang, Po Chun. / Optimization procedures for enhancement of city breathability using arcade design in a realistic high-rise urban area. In: Building and Environment. 2017 ; Vol. 121. pp. 247-261.
@article{42460e7dc088494d9b335eefaeff9faf,
title = "Optimization procedures for enhancement of city breathability using arcade design in a realistic high-rise urban area",
abstract = "Concern of city breathability has increased in recent project planning activities. Most previous studies in the literature have demonstrated that it is possible to improve urban ventilation efficiency by manipulating the arrangement of buildings with the integration of half open spaces into building configurations. In considering the arcade design which is a conventional type of half open space, this paper first focuses on examining the ventilation performance in a realistic high-rise urban area and its associated city breathability in terms of the ACH⋆ (defined as the ratio of the ACH to a characteristic frequency, determined by the reference velocity of the far upstream free flow divided by the reference building height) with or without incorporating an arcade into the object buildings. On-site measurements are conducted to validate the computational model. Then, the optimization procedures are presented, in which correlations from multivariable regression from our earlier study on generic urban street canyons are applied as the design guidelines for the arcade to maximize the ACH⋆. Computational fluid dynamics simulations are extended to take into consideration buildings with an arcade of optimum height and width in actual urban canyons to determine the effectiveness of the optimization procedures used to design arcade buildings for enhancing city breathability.",
keywords = "Arcade design, City breathability, Computational fluid dynamics, Half open spaces, Optimization procedure, Urban street canyons",
author = "Juan, {Yu Hsuan} and Yang, {An Shik} and Wen, {Chih Yung} and Lee, {Yee Ting} and Wang, {Po Chun}",
year = "2017",
month = "8",
day = "15",
doi = "10.1016/j.buildenv.2017.05.035",
language = "English",
volume = "121",
pages = "247--261",
journal = "Building and Environment",
issn = "0360-1323",
publisher = "Elsevier",

}

Optimization procedures for enhancement of city breathability using arcade design in a realistic high-rise urban area. / Juan, Yu Hsuan; Yang, An Shik; Wen, Chih Yung; Lee, Yee Ting; Wang, Po Chun.

In: Building and Environment, Vol. 121, 15.08.2017, p. 247-261.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Optimization procedures for enhancement of city breathability using arcade design in a realistic high-rise urban area

AU - Juan, Yu Hsuan

AU - Yang, An Shik

AU - Wen, Chih Yung

AU - Lee, Yee Ting

AU - Wang, Po Chun

PY - 2017/8/15

Y1 - 2017/8/15

N2 - Concern of city breathability has increased in recent project planning activities. Most previous studies in the literature have demonstrated that it is possible to improve urban ventilation efficiency by manipulating the arrangement of buildings with the integration of half open spaces into building configurations. In considering the arcade design which is a conventional type of half open space, this paper first focuses on examining the ventilation performance in a realistic high-rise urban area and its associated city breathability in terms of the ACH⋆ (defined as the ratio of the ACH to a characteristic frequency, determined by the reference velocity of the far upstream free flow divided by the reference building height) with or without incorporating an arcade into the object buildings. On-site measurements are conducted to validate the computational model. Then, the optimization procedures are presented, in which correlations from multivariable regression from our earlier study on generic urban street canyons are applied as the design guidelines for the arcade to maximize the ACH⋆. Computational fluid dynamics simulations are extended to take into consideration buildings with an arcade of optimum height and width in actual urban canyons to determine the effectiveness of the optimization procedures used to design arcade buildings for enhancing city breathability.

AB - Concern of city breathability has increased in recent project planning activities. Most previous studies in the literature have demonstrated that it is possible to improve urban ventilation efficiency by manipulating the arrangement of buildings with the integration of half open spaces into building configurations. In considering the arcade design which is a conventional type of half open space, this paper first focuses on examining the ventilation performance in a realistic high-rise urban area and its associated city breathability in terms of the ACH⋆ (defined as the ratio of the ACH to a characteristic frequency, determined by the reference velocity of the far upstream free flow divided by the reference building height) with or without incorporating an arcade into the object buildings. On-site measurements are conducted to validate the computational model. Then, the optimization procedures are presented, in which correlations from multivariable regression from our earlier study on generic urban street canyons are applied as the design guidelines for the arcade to maximize the ACH⋆. Computational fluid dynamics simulations are extended to take into consideration buildings with an arcade of optimum height and width in actual urban canyons to determine the effectiveness of the optimization procedures used to design arcade buildings for enhancing city breathability.

KW - Arcade design

KW - City breathability

KW - Computational fluid dynamics

KW - Half open spaces

KW - Optimization procedure

KW - Urban street canyons

UR - http://www.scopus.com/inward/record.url?scp=85019987809&partnerID=8YFLogxK

U2 - 10.1016/j.buildenv.2017.05.035

DO - 10.1016/j.buildenv.2017.05.035

M3 - Article

AN - SCOPUS:85019987809

VL - 121

SP - 247

EP - 261

JO - Building and Environment

JF - Building and Environment

SN - 0360-1323

ER -