Optimizing the coupling of a firebrand generator to a horizontal wind tunnel

Article

Hashempour, Javad and Sharifian, Ahmad. 2013. "Optimizing the coupling of a firebrand generator to a horizontal wind tunnel." Advanced Materials Research. 726-731, pp. 971-976. https://doi.org/10.4028/www.scientific.net/AMR.726-731.971
Article Title

Optimizing the coupling of a firebrand generator to a horizontal wind tunnel

ERA Journal ID40869
Article CategoryArticle
AuthorsHashempour, Javad (Author) and Sharifian, Ahmad (Author)
EditorsZhao, Ji, Iranpour, Reza, Li, Xinyong and Jin, Bo
Journal TitleAdvanced Materials Research
Journal Citation726-731, pp. 971-976
Number of Pages6
Year2013
Place of PublicationZurich, Switzerland
ISSN1022-6680
1662-8985
Digital Object Identifier (DOI)https://doi.org/10.4028/www.scientific.net/AMR.726-731.971
Web Address (URL)http://www.scientific.net/amr.726-731.971
Abstract

Australia is considered as the most fire-prone country in the world. Spotting ignition by lofted firebrands is the main mechanism of fire spread. Many experimental studies have been conducted to evaluate the effect of the firebrand attacks on structures and to identify possible solutions. The experimental facility consists of a firebrand generator coupled to a wind tunnel. The wind speed in the firebrand generator is relatively low, in order to assure a quality continuous flow of glowing firebrands. On the contrary, the wind speed in the wind tunnel is high to duplicate actual firebrand attacks. Previous works show a highly turbulent region above the entrance of firebrands to the wind tunnel which is formed because of the velocity difference and penetration of firebrand entrance hose into the wind tunnel. The penetration is required to provide a uniform firebrand distribution along the height of the test section. In this computational work, the influence of the height of the entrance hose, its orientation respect to the tunnel and the distance between the coupling port and the test section are analyzed. The optimized results are presented and discussed for a variety of wind speeds within the wind tunnel and the firebrand generator.

Keywordsbushfire; firebrand; wind speed; wind tunnel
ANZSRC Field of Research 2020370903. Natural hazards
401005. Risk engineering
490304. Optimisation
Public Notes

© 2013 Trans Tech Publications, Switzerland.
Series title: Advanced Materials Research v.726-731.
Published version deposited in accordance with the copyright policy of the publisher. originally presented at the 2nd International Conference on Energy and Environmental Protection (ICEEP 2013).

Byline AffiliationsComputational Engineering and Science Research Centre
Event2nd International Conference on Energy and Environmental Protection (ICEEP 2013)
Institution of OriginUniversity of Southern Queensland
ISBN9783037857427
9783037857410
Event Details
2nd International Conference on Energy and Environmental Protection (ICEEP 2013)
Event Date
19 to end of 21 Apr 2013
Event Location
Guilin, China
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