Publications

@article{hakes2017review,

title = {A review of pathways for building fire spread in the wildland urban interface part II: response of components and systems and mitigation strategies in the United States},

author = {Raquel SP Hakes and Sara E Caton and Daniel J Gorham and Michael J Gollner},

year  = {2017},

date = {2017-01-01},

journal = {Fire technology},

volume = {53},

number = {2},

pages = {475--515},

publisher = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ZHANG2017758,

title = {Evaluation of a data-driven wildland fire spread forecast model with spatially-distributed parameter estimation in simulations of the FireFlux I field-scale experiment},

author = {Cong Zhang and M\'{e}lanie Rochoux and Wei Tang and Michael Gollner and Jean-Baptiste Filippi and Arnaud Trouv\'{e}},

url = {http://www.sciencedirect.com/science/article/pii/S0379711217301005},

doi = {https://doi.org/10.1016/j.firesaf.2017.03.057},

issn = {0379-7112},

year  = {2017},

date = {2017-01-01},

journal = {Fire Safety Journal},

volume = {91},

pages = {758 - 767},

abstract = {The general objective of this research is to develop a prototype data-driven wildland fire spread simulator, called FIREFLY, using an ensemble-based data assimilation approach with the objective to forecast the location and speed of the fire. The specific focus of the present study is on evaluating the new features of FIREFLY at field scale in a controlled grassland fire experiment known as FireFlux I. FIREFLY features the following components: an Eulerian front-tracking solver that treats the fire as a propagating front and uses Rothermel's model for the rate of spread (ROS); a series of observations of the fire front position (based here on high-resolution fireline data previously generated by validated numerical simulations); and a data assimilation algorithm based on an ensemble Kalman filter configured in a parameter estimation mode to address model bias and uncertainties in the input data to the ROS model. In this work, FIREFLY is modified to allow for an estimation of spatially-distributed surface wind speed and direction. To generate a reliable ensemble and ensure an accurate correction, the ensemble Kalman filter requires sampling truncated probability density functions as well as localizing, i.e., dynamically selecting the areas where the wind parameters are corrected. Results show that the spatialized parameter estimation approach allows for a successful reconstruction of observed fireline position and shape as well as a substantial improvement in the forecast performance compared to the standalone fire spread model. Results also show that the inferred wind parameters may not be accurate and should be viewed as effective values that incorporate multiple sources of uncertainties. Developing a better representation of fire-wind interactions is thus viewed as a key aspect to improve the FIREFLY forecast capability.},

note = {Fire Safety Science: Proceedings of the 12th International Symposium},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{MILLER2017123,

author = {Colin H Miller and Wei Tang and Mark A Finney and Sara S McAllister and Jason M Forthofer and Michael J Gollner},

url = {http://www.sciencedirect.com/science/article/pii/S0010218017300998},

doi = {https://doi.org/10.1016/j.combustflame.2017.03.007},

issn = {0010-2180},

year  = {2017},

date = {2017-01-01},

journal = {Combustion and Flame},

volume = {181},

pages = {123 - 135},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{GOLLNER201768,

title = {The effect of flow and geometry on concurrent flame spread},

author = {Michael J Gollner and Colin H Miller and Wei Tang and Ajay V Singh},

url = {http://www.sciencedirect.com/science/article/pii/S0379711217303454},

doi = {https://doi.org/10.1016/j.firesaf.2017.05.007},

issn = {0379-7112},

year  = {2017},

date = {2017-01-01},

journal = {Fire Safety Journal},

volume = {91},

pages = {68 - 78},

abstract = {Flame spread is an important parameter used in the evaluation of hazards for fire safety applications. The problem of understanding and modeling flame spread has been approached before, however new developments continue to challenge our current view of the subject, necessitating future research efforts in the field. In this review, the problem of flame spread will be revisited, with a particular emphasis on the effect of flow and geometry on concurrent flame spread over solid fuels. The majority of this research is based on that of the senior author, who has worked on wind-driven flame spread, inclined fire spread, flame spread through discrete fuels and the particular problem of wildland fires, where all of the above scenarios play an important role. Recent developments in these areas have improved our understanding of flame-spread processes and will be reviewed, and areas for future research will be highlighted.},

note = {Fire Safety Science: Proceedings of the 12th International Symposium},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Xiao2016,

title = {From fire whirls to blue whirls and combustion with reduced pollution},

author = {H Xiao and M J Gollner and E S Oran},

doi = {10.1073/pnas.1605860113},

issn = {10916490},

year  = {2016},

date = {2016-01-01},

journal = {Proceedings of the National Academy of Sciences of the United States of America},

volume = {113},

number = {34},

abstract = {textcopyright 2016, National Academy of Sciences. All rights reserved. Fire whirls are powerful, spinning disasters for people and surroundings when they occur in large urban and wildland fires. Whereas fire whirls have been studied for fire-safety applications, previous research has yet to harness their potential burning efficiency for enhanced combustion. This article presents laboratory studies of fire whirls initiated as pool fires, but where the fuel sits on a water surface, suggesting the idea of exploiting the high efficiency of fire whirls for oil-spill remediation. We show the transition from a pool fire, to a fire whirl, and then to a previously unobserved state, a "blue whirl." A blue whirl is smaller, very stable, and burns completely blue as a hydrocarbon flame, indicating sootfree burning. The combination of fast mixing, intense swirl, and the water-surface boundary creates the conditions leading to nearly soot-free combustion. With the worldwide need to reduce emissions from both wanted and unwanted combustion, discovery of this state points to possible new pathways for reduced-emission combustion and fuel-spill cleanup. Because current methods to generate a stable vortex are difficult, we also propose that the blue whirl may serve as a research platform for fundamental studies of vortices and vortex breakdown in fluid mechanics.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gollner2016,

title = {Detection and Suppression of Fires: A Cornerstone of Fire Protection Engineering},

author = {M J Gollner},

doi = {10.1007/s10694-016-0606-2},

issn = {15728099},

year  = {2016},

date = {2016-01-01},

journal = {Fire Technology},

volume = {52},

number = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{singh2016experimental,

title = {Experimental methodology for estimation of local heat fluxes and burning rates in steady laminar boundary layer diffusion flames},

author = {Ajay V Singh and Michael J Gollner},

year  = {2016},

date = {2016-01-01},

journal = {JoVE (Journal of Visualized Experiments)},

number = {112},

pages = {e54029},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Singh2015c,

title = {Local Burning Rates and Heat Flux for Forced Flow Boundary-Layer Diffusion Flames},

author = {Ajay V Singh and Michael J Gollner},

url = {http://arc.aiaa.org/doi/10.2514/1.J054283},

doi = {10.2514/1.J054283},

issn = {0001-1452},

year  = {2015},

date = {2015-08-01},

journal = {AIAA Journal},

pages = {1--11},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Altintas2015,

title = {Towards an Integrated Cyberinfrastructure for Scalable Data-driven Monitoring, Dynamic Prediction and Resilience of Wildfires},

author = {Ilkay Altintas and Jessica Block and Raymond de Callafon and Daniel Crawl and Charles Cowart and Amarnath Gupta and Mai Nguyen and Hans-Werner Braun and Jurgen Schulze and Michael Gollner and Arnaud Trouve and Larry Smarr},

url = {http://linkinghub.elsevier.com/retrieve/pii/S1877050915011047},

doi = {10.1016/j.procs.2015.05.296},

issn = {18770509},

year  = {2015},

date = {2015-01-01},

journal = {Procedia Computer Science},

volume = {51},

pages = {1633--1642},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Singh2015b,

title = {A methodology for estimation of local heat fluxes in steady laminar boundary layer diffusion flames},

author = {Ajay V Singh and Michael J Gollner},

doi = {10.1016/j.proci.2014.05.040},

issn = {15407489},

year  = {2015},

date = {2015-01-01},

journal = {Combustion and Flame},

volume = {162},

number = {5},

pages = {2214--2230},

abstract = {A thorough numerical and experimental investigation of laminar boundary-layer diffusion flames established over the surface of a condensed fuel is presented. By extension of the Reynold's Analogy, it is hypothesized that the non-dimensional temperature gradient at the surface of a condensed fuel is related to the local mass-burning rate through some constant of proportionality. First, this proportionality is tested by using a validated numerical model for a steady flame established over a condensed fuel surface, under free and forced convective conditions. Second, the relationship is tested by conducting experiments in a free-convective environment (vertical wall) using methanol and ethanol as liquid fuels and PMMA as a solid fuel, where a detailed temperature profile is mapped during steady burning using fine-wire thermocouples mounted to a precision two-axis traverse mechanism. The results from the present study suggests that there is indeed a unique correlation between the mass burning rates of liquid/solid fuels and the temperature gradients at the fuel surface. The correlating factor depends upon the Spalding mass transfer number and gas-phase thermo-physical properties and works in the prediction of both integrated as well as local variations of the mass burning rate as a function of non-dimensional temperature gradient. Additional results from precise measurements of the thermal field are also presented. ?? 2014 The Combustion Institute.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Singh2015a,

title = {Estimation of local mass burning rates for steady laminar boundary layer diffusion flames},

author = {Ajay V Singh and Michael J Gollner},

url = {http://linkinghub.elsevier.com/retrieve/pii/S1540748914000431},

doi = {10.1016/j.proci.2014.05.040},

issn = {15407489},

year  = {2015},

date = {2015-01-01},

journal = {Proceedings of the Combustion Institute},

volume = {35},

number = {3},

pages = {2527--2534},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{finney2015role,

title = {Role of buoyant flame dynamics in wildfire spread},

author = {Mark A Finney and Jack D Cohen and Jason M Forthofer and Sara S McAllister and Michael J Gollner and Daniel J Gorham and Kozo Saito and Nelson K Akafuah and Brittany A Adam and Justin D English},

year  = {2015},

date = {2015-01-01},

journal = {Proceedings of the National Academy of Sciences},

volume = {112},

number = {32},

pages = {9833--9838},

publisher = {National Acad Sciences},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{MILLER201536,

author = {Colin H Miller and Michael J Gollner},

url = {http://www.sciencedirect.com/science/article/pii/S0379711215300035},

doi = {https://doi.org/10.1016/j.firesaf.2015.07.003},

issn = {0379-7112},

year  = {2015},

date = {2015-01-01},

journal = {Fire Safety Journal},

volume = {77},

pages = {36 - 45},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{zhang2014burning,

title = {Burning on flat wicks at various orientations},

author = {Yi Zhang and Michael J Bustamante and Michael J Gollner and Peter B Sunderland and James G Quintiere},

year  = {2014},

date = {2014-01-01},

journal = {Journal of fire sciences},

volume = {32},

number = {1},

pages = {52--71},

publisher = {Sage Publications Sage UK: London, England},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{huang2014correlations,

title = {Correlations for evaluation of flame spread over an inclined fuel surface},

author = {XINYAN Huang and MICHAEL J Gollner},

year  = {2014},

date = {2014-01-01},

journal = {Fire Safety Science},

volume = {11},

pages = {222--233},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{GOLLNER20132531,

title = {Experimental study of upward flame spread of an inclined fuel surface},

author = {M J Gollner and X Huang and J Cobian and A S Rangwala and F A Williams},

url = {http://www.sciencedirect.com/science/article/pii/S154074891200171X},

doi = {https://doi.org/10.1016/j.proci.2012.06.063},

issn = {1540-7489},

year  = {2013},

date = {2013-01-01},

journal = {Proceedings of the Combustion Institute},

volume = {34},

number = {2},

pages = {2531 - 2538},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{gollner_s\'{a}nchez_williams_2013,

title = {On the heat transferred to the air surrounding a semi-infinite inclined hot plate},

author = {Michael J Gollner and Antonio L S\'{a}nchez and Forman A Williams},

doi = {10.1017/jfm.2013.408},

year  = {2013},

date = {2013-01-01},

journal = {Journal of Fluid Mechanics},

volume = {732},

pages = {304\textendash315},

publisher = {Cambridge University Press},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gollner2012a,

title = {Burning Behavior of Vertical Matchstick Arrays},

author = {Michael J Gollner and Yanxuan Xie and Minkyu Lee and Yuji Nakamura and Ali S Rangwala},

url = {http://www.tandfonline.com/doi/abs/10.1080/00102202.2011.652787},

doi = {10.1080/00102202.2011.652787},

issn = {0010-2202},

year  = {2012},

date = {2012-05-01},

journal = {Combustion Science and Technology},

volume = {184},

number = {5},

pages = {585--607},

keywords = {},

pubstate = {published},

tppubtype = {article}

}