Results 261 to 270 of about 58,423 (313)
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Progress in Energy and Combustion Science, 2002
Numerical simulation of flames is a growing field bringing important improvements to our understanding of combustion. The main issues and related closures of turbulent combustion modeling are reviewed. Combustion problems involve strong coupling between chemistry, transport and fluid dynamics.
Vervisch, Luc, Veynante, Denis
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Numerical simulation of flames is a growing field bringing important improvements to our understanding of combustion. The main issues and related closures of turbulent combustion modeling are reviewed. Combustion problems involve strong coupling between chemistry, transport and fluid dynamics.
Vervisch, Luc, Veynante, Denis
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Turbulence Modeling in a Model Combustor
Canadian Aeronautics and Space Journal, 2005The flow field of a propane-air diffusion flame combustor with interior and exterior conjugate heat transfers was numerically investigated. Solutions obtained from four turbulence models together with a laminar flamelet combustion model, discrete ordinates radiation model and enhanced wall treatment are presented and discussed.
Jiang, L. Y., Campbell, Ian
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On Markov modelling of turbulence
Journal of Fluid Mechanics, 1994We consider Lagrangian stochastic modelling of the relative motion of two fluid particles in the inertial range of a turbulent flow. Eulerian analysis of such modelling corresponds to an equation for the Eulerian probability distribution of velocity-vector increments which introduces a hierarchy of constraints for making the model consistent with ...
PEDRIZZETTI, Gianni, NOVIKOV E. A.
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Influence of Turbulence Modeling on Predictions of Turbulent Combustion
AIAA Journal, 1997Computations of an axisymmetric bluff-body stabilized turbulent diffusion flame are presented. The effects of turbulence modeling on turbulent combustion predictions are studied. The test case is simulated using κ-e and Reynolds-stress-equation turbulence models with and without extensions for low Reynolds numbers.
Gran, Inge R. +2 more
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Turbulence-Model Predictions for Turbulent Boundary Layers
AIAA Journal, 1974A set of turbulence model equations, originally postulated by Saffman, forms the basis of this three-part study of steady turbulent-boundary-layer structure above a flat plate. In one part of the study the turbulence equations are integrated through the viscous sublayer by means of time-marching numerical integration techniques and the constant in the ...
Saffman, P. G., Wilcox, D. C.
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Choice of the Model of Atmospheric Turbulence
Applied Optics, 1972The concept of equivalent models of turbulence is introduced in order to investigate how the theoretical behavior of the structure function of an electromagnetic wave propagating in a given turbulent medium depends on the turbulence model. It is shown that equivalent models may give rise to substantially different structure functions of a wave ...
A. Consortini, L. Ronchi
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The Aeronautical Journal, 1982
An informal Working Party was set up in October 1980 to review the present state-of-the-art in turbulence modelling for aeronautical applications and to make recommendations for future progress in this field. The report assesses the extent to which further developments in design and prediction methods for both external and internal flow are dependent ...
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An informal Working Party was set up in October 1980 to review the present state-of-the-art in turbulence modelling for aeronautical applications and to make recommendations for future progress in this field. The report assesses the extent to which further developments in design and prediction methods for both external and internal flow are dependent ...
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Journal of Applied Mechanics, 1983
The historical development of and motivation for turbulence modeling is briefly surveyed. The models of various levels are described, and the performance of second-order models discussed. The various basic constraints to which second-order models are or are not subject are considered, including invariance, material frame indifference, realizability ...
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The historical development of and motivation for turbulence modeling is briefly surveyed. The models of various levels are described, and the performance of second-order models discussed. The various basic constraints to which second-order models are or are not subject are considered, including invariance, material frame indifference, realizability ...
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Statistical Models and Turbulence
International Statistical Review / Revue Internationale de Statistique, 1974E. L. C., M. Rosenblatt, C. Van Atta
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