Results 181 to 190 of about 33,737 (226)

Turbulent combustion in a premixed flow

Acta Astronautica, 1977
Abstract The understanding and the prediction of the phenomena involved in turbulent combustion appear as complicated problems if quantitative calculations in practical cases are required. A new calculation method for premixed turbulent flames is proposed here, based on the expected shape of the probability density function of the temperature or ...
R. Borghi, P. Moreau
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Characterization of Partially Premixed Combustion

SAE Technical Paper Series, 2006
<div class="htmlview paragraph">Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine ...
Christof Noehre, Magnus Andersson, Bengt Johansson, Anders Hultqvist   +3 more
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Combustion Modeling of Diesel Combustion with Partially Premixed Conditions

SAE Technical Paper Series, 2007
<div class="htmlview paragraph">Two turbulent combustion modeling approaches, which were large eddy simulations in conjunction with detailed kinetics (LES-CHEMKIN) and Reynolds Averaged Navier Stokes with detailed kinetics (RANS-CHEMKIN), were used to model two partially premixed engine conditions.
Bing Hu, Rahul Jhavar, Satbir Singh, Rolf D. Reitz, Christopher J. Rutland   +4 more
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LES of Partially Premixed Combustion

2002
Numerical studies devoted to partially premixed combustion are first reviewed. Then a Large Eddy Simulation procedure is proposed for these flames when they develop in turbulent flows. The corresponding subgrid combustion modeling is tested for the case of a turbulent lifted-flame.
Luc Vervisch, Pascale Domingo
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Incomplete combustion in nonadiabatic premixed gas flames

Physical Review E, 1996
The inward propagating spherical flame and burner stabilized Bunsen-type flame of low-Lewis-number premixtures are studied numerically. It is shown that reduction of the reaction rate induced by the flame stretch makes the flame vulnerable to the radiative heat losses which may well result in a partial or complete extinction of the flame.
, Kagan, , Sivashinsky
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Investigation of Non-Premixed and Premixed Distributed Combustion for GT Application

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010
Non-premixed and premixed modes of Colorless Distributed Combustion (CDC) are investigated for application to gas turbine combustors. The CDC provides significant improvement in pattern factor, reduced NOx emission uniform thermal field in the entire combustion zone for it to be called as a isothermal reactor, and lower sound levels.
Vaibhav Arghode, Ashwani Gupta, Kenneth Yu   +2 more
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Application of Macrolamination Technology to Lean, Premix Combustion

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 2000
Macrolamination, a novel manufacturing technique, is used to develop a dual-fuel premixer. A spatially distributed injection strategy is used to enhance fuel placement, distribution, and mixing inside the premixer. Parametric studies are conducted with different configurations of the premixer to determine the effects of residence time and nozzle ...
A. Mansour, M. Benjamin, D. L. Straub, G. A. Richards   +3 more
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Active control of combustion oscillations for premixed combustion systems

Journal de Physique IV (Proceedings), 2002
Methane premixed flame is studied extensively using a swirl burner and a swirl combustion chamber. First the fundamental study for the flame properties is performed for the swirl burner. Flame configuration is analyzed by a high speed photography and Schlieren system. Then a control system is set up using MATLAB, Simulink, PPC Controller board, dSPACE,
A. K. Hayashi, Y. Yamazaki, T. Mizuno, S. Ogawa, T. Yamamoto, S. Kagiya, T. Motegi   +6 more
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Investigation of Modeling for Non-Premixed Turbulent Combustion

Flow, Turbulence and Combustion, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
de Bruyn Kops, S. M., Riley, J. J., Kosály, G., Cook, A. W.   +3 more
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PDF modeling and simulation of premixed turbulent combustion

Monte Carlo Methods and Applications, 2008
The Probability Density Method (PDF) is applied to turbulent combustion simulations, with several chemical reactions. The novelty is the use of PDF in premixed combustion simulations, dealing with the difficulty of thin reaction zones introducing additional scales much smaller than the common scales of turbulent motion.
Michael Stöllinger, Stefan Heinz 0002
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