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Publications

 Google Scholar Citations | Research Gate Profile | UC eScholarship Repository (Pre-Prints) | Reports, Articles and Theses | Dataset Repositry

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1.

Tang, W; Gorham, D J; Finney, M A; Mcallister, S; Cohen, J; Forthofer, J; Gollner, M J

An experimental study on the intermittent extension of flames in wind-driven fires Journal Article

In: Fire Safety Journal, vol. 91, 2017, ISSN: 03797112.

Abstract | Links | BibTeX

@article{Tang2017,
title = {An experimental study on the intermittent extension of flames in wind-driven fires},
author = {W Tang and D J Gorham and M A Finney and S Mcallister and J Cohen and J Forthofer and M J Gollner},
doi = {10.1016/j.firesaf.2017.03.030},
issn = {03797112},
year = {2017},
date = {2017-01-01},
journal = {Fire Safety Journal},
volume = {91},
abstract = {textcopyright 2017 Elsevier Ltd Experiments were conducted to study the intermittent extension of flames from wind-driven line fires using stationary burners. These fires are thought to share similar features with propagating wildland fires, where forward pulsations of flame have been observed to quickly ignite material far ahead of the mean flame front. However, stationary burners offer the ability to study the movement of the flame and its heating processes in greater detail than a spreading fire. In these stationary experiments, propane gas was used as a fuel with different burner sizes, 25\textendash30 cm wide and 5\textendash25 cm long in the direction of the flow. A specially-built wind tunnel was used to provide a well-characterized laminar flow for the experimental area. The free-stream flow velocity, measured by a hot-wire anemometer, ranged in the experiments from 0.2 to 2.7 m/s. The shape of the flame was measured using a high-speed video camera mounted perpendicular to the apparatus. A method was developed to track the extension of the flame close to the surface, simulating flame contact with unburnt fuel downstream of the fire. This extension length was then measured frame by frame and frequencies of flame presence/absence determined as a function of downstream distance. The location of maximum pulsation frequency, x max , for each burner/wind configuration, was obtained using a level-crossing approach (essentially the variable-interval time-average (VITA) method). Further study indicates that x max can be well estimated using mean flame properties. Probability distributions describing the location of the flame over time also showed that, the probability the flame extends far beyond the mean flame front is sensitive to increasing ambient winds and fire size.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

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textcopyright 2017 Elsevier Ltd Experiments were conducted to study the intermittent extension of flames from wind-driven line fires using stationary burners. These fires are thought to share similar features with propagating wildland fires, where forward pulsations of flame have been observed to quickly ignite material far ahead of the mean flame front. However, stationary burners offer the ability to study the movement of the flame and its heating processes in greater detail than a spreading fire. In these stationary experiments, propane gas was used as a fuel with different burner sizes, 25–30 cm wide and 5–25 cm long in the direction of the flow. A specially-built wind tunnel was used to provide a well-characterized laminar flow for the experimental area. The free-stream flow velocity, measured by a hot-wire anemometer, ranged in the experiments from 0.2 to 2.7 m/s. The shape of the flame was measured using a high-speed video camera mounted perpendicular to the apparatus. A method was developed to track the extension of the flame close to the surface, simulating flame contact with unburnt fuel downstream of the fire. This extension length was then measured frame by frame and frequencies of flame presence/absence determined as a function of downstream distance. The location of maximum pulsation frequency, x max , for each burner/wind configuration, was obtained using a level-crossing approach (essentially the variable-interval time-average (VITA) method). Further study indicates that x max can be well estimated using mean flame properties. Probability distributions describing the location of the flame over time also showed that, the probability the flame extends far beyond the mean flame front is sensitive to increasing ambient winds and fire size.

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  • doi:10.1016/j.firesaf.2017.03.030

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Magazine Articles

Pathways for Building Fire Spread in the Wildland Urban Interface
Gollner, M.J., Society of Fire Protection Engineers’ Emerging Trends Newsletter, Issue 101. 2015

Pathways for Building Fire Spread in the Wildland Urban Interface
Gollner, M.J., SFPE Emerging Trends Newsletter, Society of Fire Protection Engineers, August, 2015.

The Flammability of a Storage Commodity
Gollner, M.J., Fire Protection Engineering Magazine, Society of Fire Protection Engineers, April 2014.

Theses

Effect of Microgravity on the Development and Structure of Fire Whirls

Jones, Michael, M.S. Thesis, University of Maryland College Park, 2020

A STUDY OF INTERMITTENT CONVECTIVE HEATING OF FINE LIVE WILDLAND FUELS

Orcurto, Ashlynne R, M.S. Thesis, Univeristy of Maryland, College Park, 2020

Laboratory Studies on the Generation of Firebrands from Cylindrical Wooden Dowels
Caton, Sara, M.S. Thesis, University of Maryland, College Park, 2017

Thermal Characterization of Firebrand Piles
Hakes, Raquel Sara Pilar, M.S. Thesis, University of Maryland, College Park, 2017

The Structure of the Blue Whirl: A Soot-Free Reacting Vortex Phenomenon
Sriram Bharath Hariharan, M.S. Thesis, University of Maryland, College Park, 2017

Moisture Content Effects on Energy and Emissions Released During Combustion of Pyrophytic Vegetation
Nathaniel Andrew May, M.S. Thesis, University of Maryland, College Park, 2017
A Fundamental Study of Boundary Layer Diffusion Flames
Singh, Ajay. Ph.D. Thesis, University of Maryland, College Park, 2015.
In Situ Burning Alternatives
Cohen, Brian, M.S. Thesis, University of Maryland, College Park, 2014.
Flame Spread Through Wooden Dowels
Zhao, Zhao, M.S. Thesis, University of Maryland, College Park, 2014.
Upward Flame Spread over Discreet Fuels
Miller, Colin, M.S. Thesis, University of Maryland, College Park, 2014
Studying Wildland Fire Spread Using Stationary Burners
Gorham, D.J., M.S. Thesis, University of Maryland, College Park, 2014.
Transient Fire Load on Aluminum Ferries (PDF)
Hall, B. M.S. Thesis, University of Maryland, College Park, 2014.
Studies on Upward Flame Spread (PDF, Official Copy, Presentation)
Gollner, MJ. Ph.D. Dissertation, University of California, San Diego, 2012.
A Fundamental Approach to Storage Commodity Classification (PDF, Proquest, Presentation)
Gollner, M.J. M.S. Thesis, University of California, San Diego, 2010.

Reports

Literature Review on Spaceport Fire Safety (NFPA Site)
Erin Griffith, Alicea Fitzpatrick, Seth Lattner, Joseph Dowling, Michael J. Gollner

Towards Data-Driven Operational Wildfire Spread Modeling: A REPORT OF THE NSF-FUNDED WIFIRE WORKSHOP
Gollner, M.J. and Trouve, A., 2015.

Pathways for Building Fire Spread at the Wildland Urban Interface (NFPA Site)
Gollner, M.J., Hakes, R., Caton, S. and Kohler, K., Fire Protection Research Foundation, National Fire Protection Association, March, 2015.

Literature Review on Hybrid Fire Suppression Systems
Raia, P. and Gollner, M.J., Fire Protection Research Foundation, National Fire Protection Association, May 2014.

Fire Safety Design and Sustainable Buildings: Challenges and Opportunities: Report of a National Symposium
Gollner, M.J., Kimball, A. and Vecchiarelli, T., Fire Protection Research Foundation, National Fire Protection Association, 2013.

Copyright Notes

In following copyright law, most journals allow their authors to share post-prints of their journal articles (essentially pre-prints with changes from the review process but lacking any publisher modifications or typesetting). Therefore, I have posted PDF Post-Prints of most journal articles in addition to document object identifier (DOI) links to the articles on the publishers site (sometimes requiring subscription). For more information about journal copyrights, please visit http://www.sherpa.ac.uk/romeo/. I have posted some conference proceedings on Research Gate. If you do not have access to a final article version, please contact me.

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