Results 1 to 10 of about 709,423 (312)
From fire whirls to blue whirls and combustion with reduced pollution. [PDF]
Proc Natl Acad Sci U S A, 2016 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 ...
Xiao H, Gollner MJ, Oran ES.
europepmc +9 more sources
Investigating the turbulent dynamics of small-scale surface fires [PDF]
Scientific Reports, 2022 High frequency (30 Hz) two-dimensional particle image velocimetry data recorded during a field experiment exploring fire spread from point ignition in hand-spread pine needles under calm ambient wind conditions are analysed in this study.
Ajinkya Desai +2 more
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Frontiers in Mechanical Engineering, 2023 The authors are a team of fire whirl researchers who have been actively studying whirls and large-scale wildland fires by directly observing them through fire-fighting efforts and applying theory, scale modeling, and numerical simulations in fire ...
Adnan Darwish Ahmad +9 more
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Applied Sciences, 2020 A numerical study of the fire whirl formation under symmetrical and asymmetrical entraining configuration is presented. This work aims to assess the effect of eddy-generation configuration on the evolution of the intriguing phenomenon coupled with both ...
Cheng Wang +7 more
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Fire, 2023 A fire whirl, a unique fire behavior, occurs when a vertical vortex of flames skyrockets due to specific surrounding temperatures and thermal gradient conditions during a fire.
Chao Ding +5 more
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Effect of Slope on the Frequency and Height of Fire Whirls
Fire, 2023 Fire whirls are reported to occur frequently in the wilderness and in urban areas due to the influence of ambient winds. Fire whirls that occur on sloped fuel surfaces are common in the wilderness and have received less attention despite their potential ...
Yifan Wang, Kuibin Zhou
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Experimental and Numerical Analysis of Formation and Flame Precession of Fire Whirls: A Review
Fire, 2021 Fire whirls are a particular case of flame behaviour characterized by a rotating column of fire driven by intense convective heating of air close to the ground.
Maryam Ghodrat +3 more
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Case Studies in Thermal Engineering, 2023 Buildings with large internal spaces, such as vertical shafts or atria, are widespread nowadays. In the case of fire, internal air currents may generate devastating fire whirls that can cause severe damage due to intensive heat release rate (HRR) and ...
Alexis Cantizano +4 more
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Capturing the Swirling Vortex and the Impact of Ventilation Conditions on Small-Scale Fire Whirls
Applied Sciences, 2020 The fundamental flow structure and temperature distribution of small-scale fire whirls, including tangential and axial velocities, temperature variation, and air entrainment in the lower boundary layer, were successfully captured using a generic fire ...
Xiang Fang +4 more
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Role of firebrand combustion in large outdoor fire spread [PDF]
Progress in Energy and Combustion Science, 2020 Samuel L Manzello +2 more
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