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Fire

Wildland urban interface fire

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Displaying 101 - 125 of 216

Investigating Coupled Effect of Radiative Heat Flux and Firebrand Showers on Ignition of Fuel Beds  Structure vs Vegetative Firebrands

May 28, 2020

Author(s)

Samuel L. Manzello, Sayaka Suzuki

This is two page extended abstract

Structure Ignition Mechanisms in Wildland-Urban Interface (WUI) Fire and Associated California State Fire Marshal Standard Test Methods

May 28, 2020

Author(s)

Samuel L. Manzello

This is a two page extended abstract.

Effect of Fire-Retardant Coatings and Accelerated-Weathering on the Flammability of Wood-Based Materials in Wildland-Urban Interface (WUI) Communities

May 12, 2020

Author(s)

Laura J. Dubrulle, Mauro Zammarano, Rick D. Davis

Ten commercial fire-retardant coatings (FRCs) designed for wood in outdoor applications, either film-forming or non-film forming (stains), and five top-coatings (used in combination with a FRC to increase its durability) were characterized by microscale

Determining Flow Resistance through Vegetation Canopy

May 2, 2020

Author(s)

Ryan L. Falkenstein-Smith, Kevin B. McGrattan

This study documents the measurement of the wind resistance of different types of vegetation. The measurements are made in a wind tunnel with a 2.0 m test section and 0.5 m by 0.5 m cross- section. Samples of vegetation have been cut into cubical volumes

Development of a New Approach to Characterize Firebrand Showers During Wildland-Urban Interface (WUI) Fires: a Step Towards High-Fidelity Measurements in Three Dimensions

May 1, 2020

Author(s)

Nicolas Bouvet, Eric D. Link, Stephen A. Fink

A new approach to characterize airborne firebrands during Wildland Urban Interface (WUI) fires is detailed. The approach merges the following two imaging techniques in a single field-deployable diagnostic tool: 1/ 3D Particle Tracking Velocimetry (3D-PTV)

Experimental study on vulnerabilities of Japanese style tile roof assemblies to firebrand exposures

April 18, 2020

Author(s)

Samuel L. Manzello, Sayaka Suzuki

Roof assemblies are known to be vulnerable to firebrands in urban and wildland-urban interface fires. In the 2016 urban fire in Japan (Itoigawa-City Fire), at least 10 structures were ignited by firebrand showers and three of these structures were ignited

Special Section on Global Overview of Large Outdoor Fire Standards

February 6, 2020

Author(s)

Samuel L. Manzello

This is a guest editorial.

Garnering understanding into complex firebrand generation processes from large outdoor fires using simplistic laboratory-scale experimental methodologies

February 2, 2020

Author(s)

Samuel L. Manzello, Sayaka Suzuki

A simple laboratory-scale experimental method was developed to study firebrand generation processes. As part of these experiments, Japanese wind facilities were used to elucidate the effect of wind speed on the firebrand generation. It was found that very

Influence of Angle Orientation on Firebrand Production from the Combustion of Materials Exposed to Applied Wind Fields

November 20, 2019

Author(s)

Samuel L. Manzello, Sayaka Suzuki

A shared feature in the rapid spread of large outdoor fires are the production or generation of new, far smaller combustible fragments from the original fire source referred to as firebrands. A simplified experimental protocol has been developed that

Investigating coupled effect of radiative heat flux and firebrand showers on ignition of fuel beds

November 20, 2019

Author(s)

Samuel L. Manzello, Sayaka Suzuki

Fire spread occurs via radiation, flame contact, and firebrands. While firebrand showers are known to be a cause of spot fires which ignite fuels far from the main fire front, in the case of short distance spot fires, radiation from the main fire may play

Influence of Board Spacing on Mitigating Wood Decking Assembly Ignition

November 17, 2019

Author(s)

Samuel L. Manzello, Sayaka Suzuki

As part of recent building code change discussions, it has been suggested that by increasing the spacing of boards, it may be possible to mitigate ignition of wood decking assemblies from wind-driven firebrand showers. An experimental series was undertaken

Role of Firebrand Combustion in Large Outdoor Fire Spread

October 4, 2019

Author(s)

Samuel L. Manzello, Sayaka Suzuki, Michael Gollner, A C. Fernandez-Pello

Large outdoor fires are an increasing danger to the built environment. Wildfires that spread into com- munities, labeled as Wildland-Urban Interface (WUI) fires, are an example of large outdoor fires. Other examples of large outdoor fires are urban fires

Measurement of Drag Coefficients through Vegetation Canopy

September 16, 2019

Author(s)

Ryan L. Falkenstein-Smith, Kevin B. McGrattan