Analysis of airflow over building arrays for assessment of urban wind environment

Research output: Contribution to journalArticlepeer-review

175 Citations (Scopus)


Large eddy simulation (LES) of the airflows around various types of block arrays was performed to estimate the pedestrian wind environment. Five types of uniform staggered block arrays with different aspect ratios and an array with a nonuniform height were selected for the simulations. The simulation accuracy was validated by comparing the drag coefficient and wind profiles with those of previous work. The characteristics of the spatially averaged mean wind profiles of the arrays were analyzed on the basis of the calculation results. This study reveals that the frontal area ratio, which is the product of the plan area ratio and building aspect ratio, is the most important parameter in estimating the pedestrian wind environment. In addition, a simple exponential equation was derived for predicting the pedestrian wind speed as a function of the frontal area ratio, which is applicable to various building aspect ratios and amounts of height variability.

Original languageEnglish
Pages (from-to)56-65
Number of pages10
JournalBuilding and Environment
Publication statusPublished - Jan 2013

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction


Dive into the research topics of 'Analysis of airflow over building arrays for assessment of urban wind environment'. Together they form a unique fingerprint.

Cite this