Effect of lift-up design on pedestrian level wind comfort around isolated building under different wind directions

Yaxing Du, Cheuk Ming Mak

Research output: Journal article publicationConference articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Published by Elsevier Ltd. The pedestrian level wind environment is seriously worsen by moderated air flow in the built-up cities like Hong Kong. The lift-up design is therefore adopted in the building constructions to improve the weak wind condition. In order to evaluate the influence of lift-up design on the pedestrian level wind comfort, the wind flow around isolated buildings with and without Lift-up design are simulated respectively via CFD approach. The turbulence model and numerical method are firstly validated by comparing the simulated wind flow data with a wind tunnel test. Then the validated model is used to simulate the wind flows around the isolated buildings. Results show that the lift-up design can improve the wind comfort at pedestrian level and its effects are highly rely on the approaching wind direction. Specifically, the wind comfort is better under the oblique wind direction than the other wind directions.
Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalProcedia Engineering
Volume205
DOIs
Publication statusPublished - 1 Jan 2017
Event10th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2017 - Jinan, China
Duration: 19 Oct 201722 Oct 2017

Keywords

  • Computational fluid dynamics (CFD) simulation
  • Lift-up design
  • Mean wind velocity ratio (MVR)
  • Pedestrian level wind comfort

ASJC Scopus subject areas

  • Engineering(all)

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