Wind tunnel experiments on effects of woven wire screens and buffer zones in mitigating risks associated with firebrand showers

Sharifian, Ahmad and Hashempour, Javad (2018) Wind tunnel experiments on effects of woven wire screens and buffer zones in mitigating risks associated with firebrand showers. Australian Journal of Mechanical Engineering. ISSN 1448-4846

Abstract

The benefits of using wire screens to mitigate wildfire spread are well known and many standards mandate their use in wildland fire prone areas. However, some recent studies show that firebrands can penetrate through screens. The penetrated firebrands are smaller in size, have less potential to ignite fuel beds and have a shorter burn-out time. This leads to the idea that a combination of a buffer zone and screens might be able to serve as a wildfire barrier. This study aims to explore the effectiveness of such an approach for two screens with a relatively short buffer zone. The results show that the combination is very effective in reducing firebrand intensity but falls short of full protection. The study suggests the combination of screens and a wider buffer zone is a promising approach to mitigate the spread of wildfires.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published online 7 March 2017. Permanent restricted access to ArticleFirst version in accordance with copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 21 Mar 2018 06:03
Last Modified: 21 Mar 2018 06:03
Uncontrolled Keywords: Wind tunnel; ember shower; ember attack; metal mesh; wire screen; fuel bed; wildland fire; bushfire
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
07 Agricultural and Veterinary Sciences > 0705 Forestry Sciences > 070503 Forestry Fire Management
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970105 Expanding Knowledge in the Environmental Sciences
D Environment > 96 Environment > 9605 Ecosystem Assessment and Management > 960505 Ecosystem Assessment and Management of Forest and Woodlands Environments
E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970110 Expanding Knowledge in Technology
D Environment > 96 Environment > 9610 Natural Hazards > 961004 Natural Hazards in Forest and Woodlands Environments
E Expanding Knowledge > 97 Expanding Knowledge > 970112 Expanding Knowledge in Built Environment and Design
Identification Number or DOI: 10.1080/14484846.2018.1447225
URI: http://eprints.usq.edu.au/id/eprint/27403

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