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Fractal modelling of turbulent combustion
Combustion Theory and Modelling, 2000In a previous paper we proposed a new model for turbulent flows, called the fractal model (FM), which is applicable both to RANS and LES formulations. Here, the model is extended to the reactive case with the goal of simulating turbulent flames, both premixed and non-premixed.
GIACOMAZZI E. +2 more
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Phenomenological Combustion Models
2011For the calculation of engine combustion processes, various model categories can be employed, which are quite diverse in their level of detail, but also in their calculation time requirements, see Stiesch (2003). Calculation models are customarily designated as phenomenological models that can calculate combustion and pollutant formation contingent ...
Gunnar Stiesch +2 more
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Combustion Modeling in SI Engines with a Peninsula-Fractal Combustion Model
SAE Technical Paper Series, 1996<div class="htmlview paragraph">In premixed turbulent combustion models, two mechanisms have been used to explain the increase in the flame speed due to the turbulence. The newer explanation considers the full range of turbulence scales which wrinkle the flame front so as to increase the flame front area and, thus, the flame propagation speed ...
Ronald D. Matthews +3 more
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Multidimensional Combustion Models
2003A chemical reaction between the reactant species A a , A b , etc., that forms the product species A c , A d , etc., is often written as $${v_a}{A_a} + {v_b}{A_b} + \ldots \to {v_c}{A_c} + {v_d}{A_d} + \ldots $$ (6.1) where the v i are termed the stoichiometric coefficients of the reaction.
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Modeling of Combustion Processes in Internal Combustion Engines
Chemistry and Technology of Fuels and Oils, 2000Improving internal combustion engines (ICE) and increasing the quality of operation are linked with the necessity of maximally increasing the degree of compression. For ICE with spark ignition (otto cycle), the possibilities for such an increase are limited by “knock,” a complex, incompletely investigated phenomenon.
V. A. Vinokurov +3 more
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Turbulent Combustion Modelling
1999Turbulent combustion, or, more generally, turbulent reacting flows, is a phenomenon of importance in both nature and technology. For example, in nature, forest fires are an important aspect of the evolution of a forest ecosystem (see figure 8.1). In another example, the dispersion of man-made pollutants into the atmosphere and oceans, and subsequent ...
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A Multi-Section Droplet Combustion Model for Spray Combustion Simulation
Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2011Since 1960s, from experimental observation, there are several stages for liquid droplets in multi-phase combustion: pure heating, pure evaporation without individual droplet combustion, and individual droplet combustion (burning) with individual flame around which enhances evaporation.
Wang, F. +3 more
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Mathematical Models of Combustion Processes
Journal of Mathematical ScienceszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Denisov, I. V., Denisov, A. I.
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Archive for Rational Mechanics and Analysis, 1991
In this paper we introduce a simple combustion model and study its properties. The model supports both deflagration and detonation waves and exhibits instability. Our purpose is to introduce an admissibility criterion through the study of elementary waves, and use it to investigate the nonlinear stability and instability of flows with combustion waves.
Tai-Ping Liu, Tong Zhang
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In this paper we introduce a simple combustion model and study its properties. The model supports both deflagration and detonation waves and exhibits instability. Our purpose is to introduce an admissibility criterion through the study of elementary waves, and use it to investigate the nonlinear stability and instability of flows with combustion waves.
Tai-Ping Liu, Tong Zhang
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Comparison of droplet combustion models in spray combustion
27th Joint Propulsion Conference, 1991This study compares the spray combustion characteristics predicted by the above three models with experimental observations resulting from various inlet mean droplet sizes. A simplified combustor, similar to that used for the spray BurkeSchumann diffusion flame, is assumed.
T. L. Jiang, W. Hsu
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