An Analysis of a Method to Estimate the Effect on Wind on Natural Ventilation in Large Spaces

Nils Johansson, Björn Karlsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The influence of wind is only occasionally accounted for in fire safety engineering, still the effect of wind on, for example, the performance of a smoke management system can be large. A simple analytical method to account for the effect of wind on mass flow through horizontal openings for natural ventilation is compared to results from CFD simulations in this paper. It is seen that the correspondence between the two methods decreases with increased wind speed, and is overall limited for wind speeds above 2 m/s. The influence of wind on the exterior and interior of a building is complex and the simplifications included in the analytical method might be too extensive for the method to be useful. However, the result of this study is dependent on the geometry of the studied cases and there might be other situations where the analytical method could be useful.
Original languageEnglish
Title of host publicationProceedings of the 15th International Conference and Exhibition on Fire Science and Engineering
Subtitle of host publicationInterflam 2019
Place of PublicationLondon, United Kingdom
PublisherInterscience Communications Ltd
Number of pages8
Publication statusPublished - 2019 Jun 30
Event15th International Conference and Exhibitionon Fire Science and Engineering, Interflam 2019 - London, United Kingdom
Duration: 2019 Jul 12019 Jul 3

Conference

Conference15th International Conference and Exhibitionon Fire Science and Engineering, Interflam 2019
Country/TerritoryUnited Kingdom
CityLondon
Period2019/07/012019/07/03

Subject classification (UKÄ)

  • Other Civil Engineering

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