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New Paper Published on "Estimation of local mass burning rates for steady laminar boundary layer diffusion flames"

June 7, 2014 by admin

A new paper has been published in the Proceedings of the Combustion Institute: “Estimation of local mass burning rates for steady laminar boundary layer diffusion flames”
Ajay V. Singh and Michael J. Gollner
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.

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August 16, 2022 at 2PM Pacific with Dr. Erica Fisher. More details coming soon!

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We study combustion and fire phenomena using experimental and analytical techniques. A strong background in heat transfer, combustion, fluid mechanics...

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🔈🔥❄️New post-doc job opportunity at our Centre, @ImperialHazelab working with @GuillermoRein on the project FireFrost which looks at smouldering Arctic fires. Deadline 31st August - more info and how to apply here ⬇️

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In this week's #MondayArchiveDig, I would like to highlight episode 22 with @gollnerfire You can talk about anything with Michael, really... but here we chose to dig into the role of combustion science and fluid mechanics in understanding fires.

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Wow https://t.co/b1nmkTMr62

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