Results 161 to 170 of about 147,947 (209)

Supersonic Combustion: Modelling and Simulations

14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference, 2006
Mixing and combustion of supersonic reacting flows are currently under investigation for new generation launchers and trans-atmospheric vehicles. Experimental results with hydrogen injected at Mach 2.5 in a Mach 2 airstreams showed combustion taking place just in ∼0.6 m: this indicates that supersonic combustion is very efficient.
INGENITO, ANTONELLA, C. Bruno, E. Giacomazzi, J. Steelant   +3 more
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Counterflow spray combustion modeling

Combustion and Flame, 1989
A fuel spray planar counterflow flame has been modeled by means of a low-Mach-number boundary layer approach. The model considers density variations and full coupling between the two phases by means of a hybrid Eulerian-Lagrangian formulation, with droplet drag and vaporization.
G. CONTINILLO, W. SIRIGNANO
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LES Modeling of Scramjet Combustion

44th AIAA Aerospace Sciences Meeting and Exhibit, 2006
The physics of supersonic combustion is analyzed in order to derive a new subgrid scale model for Large Eddy Simulation. Anisotropy associated to the directional Mach number typical of supersonic flows (i. e., M > 1 in only one direction) is explicitly considered by means of non-dimensionalized Navier-Stokes equations.
INGENITO, ANTONELLA, M. G. De Flora, E. Giacomazzi, C. Bruno, Johan Steelant   +4 more
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Combustion Modeling in Internal Combustion Engines

Combustion Science and Technology, 1976
The fundamental assumptions of the Blizard and Keck combustion model for internal combustion engines are examined and a generalization of that model is derived. The most significant feature of the model is that it permits the occurrence of unburned hydrocarbons in the thermodynamic-kinetic modeling of exhaust gases.
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Fractal modelling of turbulent combustion

Combustion Theory and Modelling, 2000
In 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., BRUNO, Claudio, FAVINI, Bernardo   +2 more
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Combustion Physics: Turbulent combustion modelling

Physics Bulletin, 1984
Turbulent combustion modelling as a major distinctive topic has been with us now for more than ten years. Increasingly it has attracted the interest of fluid dynamicists and applied mathematicians, groups without established interests in chemically reacting flows.
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Mathematical Models of Combustion Processes

Journal of Mathematical Sciences
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Denisov, I. V., Denisov, A. I.
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A Qualitative Model for Dynamic Combustion

SIAM Journal on Applied Mathematics, 1981
A qualitative model for studying shock-wave chemistry interactions in combustion theory is introduced. The model which we study bears the analogous relationship to reacting gas flow as Burgers’ equation does to ordinary compressible fluid flow. When the corresponding physical assumptions of the Chapman–Jouget and von Neumann–Zeldovich–Doring theories ...
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Modeling of Combustion Processes in Internal Combustion Engines

Chemistry and Technology of Fuels and Oils, 2000
Improving 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, V. A. Kaminskii, V. A. Frost, I. M. Kolesnikov   +3 more
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Modelling of Combustion In a Gas Turbine Combustion System

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">The main aim of this work is to carry out a 3D flow field analysis of an annular gas turbine combustor using finite volume method. The numerical calculations are performed using Semi Implicit Method for Pressure Linked Equations (SIMPLE) algorithm with unstructured grid arrangement. The turbulence models tried are &
V Balasubramaniam, V Ganesan
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