Results 31 to 40 of about 11,005 (312)
Amplification of turbulence level by a flame and turbulent flame velocity
Combustion and Flame, 1972 In turbulent combustion, the existence of turbulence increnses the flame velocity markedly, while the flame augments the intensity of turbulence. A consideration of this interaction between a flame and the aerodynamics (turbulence) has led to a set of equations from which turbulent flame velocities can be calculated with reasonable accuracy over a wide
openaire +2 more sources
Experimental study on premixed flame acceleration in closed pipe [PDF]
, 2013 An experimental study has been carried out to investigate the flame acceleration in closed pipe. A horizontal steel pipe, with 2 m long and 0.1 m diameter, giving length to diameter (L/D) ratio of 20 was used in this project.
M. Kasmani, R., Mat Kiah, M. H.
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FireThe overpressure characteristics of gasoline explosions in multi-branch pipes are caused by various factors, with flame velocity as a particularly significant determinant.
Keyu Lin +5 more
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Turbulence–flame interactions in lean premixed dodecane flames [PDF]
Proceedings of the Combustion Institute, 2017 Turbulent lean premixed dodecane/air flames are simulated in a doubly-periodic domain using detailed kinetics and transport over a range of Karlovitz number. We observe extensive thickening of thermal profiles through the flames that increases with turbulent intensity.
Aspden, A.J. +3 more
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Journal of Combustion, 2011 Parametric direct numerical simulations (DNS) of turbulent premixed flames burning methane in the thin reaction zone regime have been performed relying on complex physicochemical models and taking into account volume viscosity (κ). The combined effect of
Gordon Fru +2 more
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Flow divergence in the turbulent premixed flames
Nihon Kikai Gakkai ronbunshu, 2014 In order to elucidate the flow divergence in the rich propane-air turbulent premixed flames, the flow fields of lean and rich propane-air and methane-air turbulent premixed flames of the identical conditions of laminar burning velocity and characteristic
Yasuko YOSHIDA +2 more
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Turbulent partially cracked ammonia/air premixed spherical flames
Fuel CommunicationsThe combustion of ammonia requires, for most energy conversion systems, a combustion promoter such as hydrogen to guarantee the start-up, stability and combustion efficiency.
S. Zitouni +2 more
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Arthritis Care &Research, EarlyView.Objective Although the definition of a gout flare is well established, the state of gout flare resolution has not yet been defined. This study aimed to explore patients’ experiences and perceptions of gout flare resolution. Methods Semistructured interviews were conducted with 24 people with gout, guided by open‐ended questions exploring their ...
Sarah Stewart +5 more
wiley +1 more source
Turbulent flame development in a high-pressure combustion vessel [PDF]
, 2005 The objective of this work was to extend the range of turbulent burning velocities presented in the literature by performing new measurements at elevated pressures over a range of turbulent velocities, u' (r. m. s. deviation from the mean velocity).
Ormsby, Matthew P, Ormsby, Matthew P.
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EnergiesThe statistical behaviour and modelling of turbulent fluxes of the reaction progress variable and non-dimensional temperature in the context of Reynolds-Averaged Navier–Stokes (RANS) simulations have been analysed for flame–wall interactions within ...
Umair Ahmed +2 more
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