Experimental and Numerical Evaluation of a Wildland–Urban Interface Fire Scenario

Author:

Craveiro Hélder D.1ORCID,Fiorini Cesare1ORCID,Laím Luís1ORCID,Guillaume Bruno2ORCID,Santiago Aldina1ORCID

Affiliation:

1. Institute for Sustainability and Innovation in Structural Engineering (ISISE), Advanced Production & Intelligent Systems (ARISE), Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, Portugal

2. EFECTIS, 33800 Bordeaux, France

Abstract

This paper presents the results obtained from a field fire test, aiming to reproduce a wildland–urban interface scenario to collect relevant information concerning the impact of wildfires on the built environment. The objective was to understand heat transfer mechanisms from forest fires to structures. During the fire test, the temperatures at the exposed face of one building component were monitored, as well as those in the vicinity of that component, using thermal imaging. The detailed characterization of the field test and building component and obtained experimental results of the fire test were then used to develop and validate a complex computational fluid dynamics model (full physics models) using the Fire Dynamics Simulator (FDS). Several numerical models were previously developed to reproduce the behaviour of individual shrubs and trees in fires considering available results in the literature. The developed Computational Fluid Dynamics (CFD) models can accurately reproduce the field test, including the fire spread and the temperature evolution on the surface of the exposed construction component. The obtained maximum temperature in the construction element was 1038 °C, whereas the maximum average temperature was approximately 638 °C. According to the results from the numerical model, the construction element was exposed to a very high heat flux (above 40 kW/m2), indicating direct contact of the flames with the construction element. The use of CFD enables the quantification of the characteristics of the fire and the exposure of structures to fire in the wildland–urban interface (WUI), allowing for the definition of a performance-based design approach for buildings in the WUI. This contributes to developing safe and resilient structures, as well as mitigating and reducing the impacts of wildfires in the built environment.

Funder

Portuguese Foundation for Science and Technology

FCT/MCTES

Associate Laboratory Advanced Production and Intelligent Systems ARISE

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference55 articles.

1. Wildfires in the wildland-urban interface: Key concepts and evaluation methodologies;Vieira;Sci. Total Environ.,2020

2. Mapping the wildland-urban interface in California using remote sensing data;Li;Sci. Rep.,2022

3. The wildland–urban interface in the United States;Radeloff;Ecol. Appl.,2005

4. Examining the Existing Definitions of Wildland-Urban Interface for California;Kumar;Ecosphere,2022

5. Urban Wildland Interface Communities with Vicinity of Federal Lands that are at High Risk from Wildfire;Glickman;Fed. Regist.,2001

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3