Comparison of single-sided ventilation characteristics between single-room and multistory buildings due to wind effect

Zhengtao Ai, Cheuk Ming Mak, Dongjin Cui

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Previous studies on single-sided natural ventilation are mostly limited to very simple physical models, such as a single-room building model. Our recent on-site measurements have shown that previous empirical models established based on such simple physical models are inapplicable in multistory buildings. This study intends to compare the ventilation characteristics between single-room and multistory buildings with single-sided natural ventilation. Therefore, a solid block, a single-room, and a multistory building are created. Steady CFD simulation using the Renormalization group (RNG) k-ε model is employed to establish the turbulent flow field, and the integration method is used to predict the ventilation rate. It is found that the envelope pattern experienced by the room in the single-room building is completely different with those rooms in the multistory building, leading to completely distinctive ventilation characteristics. This implies that future studies of single-sided natural ventilation should use more practical models, such as a multistory building.
Original languageEnglish
Title of host publicationIndoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate
PublisherInternational Society of Indoor Air Quality and Climate
Pages9-16
Number of pages8
Publication statusPublished - 1 Jan 2014
Event13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong
Duration: 7 Jul 201412 Jul 2014

Conference

Conference13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
CountryHong Kong
CityHong Kong
Period7/07/1412/07/14

Keywords

  • Computational Fluid Dynamics (CFD)
  • Multistory buildings
  • Single-room buildings
  • Single-sided ventilation
  • Ventilation characteristics

ASJC Scopus subject areas

  • Pollution
  • Building and Construction
  • Health, Toxicology and Mutagenesis
  • Computer Science Applications

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