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2016
The behaviour of fluids can be described by the well-known mathematical model known as the Navier-Stokes equations. The original equations include formulations for the conservation of momentum, energy and mass, therefore leading to three momentum equations, one energy equation and one continuity equation. The form presented below is a simplification of
Takeo Kajishima, Kunihiko Taira
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The behaviour of fluids can be described by the well-known mathematical model known as the Navier-Stokes equations. The original equations include formulations for the conservation of momentum, energy and mass, therefore leading to three momentum equations, one energy equation and one continuity equation. The form presented below is a simplification of
Takeo Kajishima, Kunihiko Taira
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2011
At high Reynolds number the fluid velocity is exponentially sensitive to perturbations of the problem data. This sensitivity, however, is not uniform. The large structures (large eddies) evolve deterministically and are thus not sensitive [BFG02]. The small eddies are sensitive because they have a random character.
William J. Layton, Leo G. Rebholz
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At high Reynolds number the fluid velocity is exponentially sensitive to perturbations of the problem data. This sensitivity, however, is not uniform. The large structures (large eddies) evolve deterministically and are thus not sensitive [BFG02]. The small eddies are sensitive because they have a random character.
William J. Layton, Leo G. Rebholz
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International Journal of Computational Fluid Dynamics, 2010
Abstract The large-eddy-simulation technique is introduced. The mathematical formulation is presented, and several examples are discussed. Some issues related to the resolution of the wall layer are reviewed. Challenges and possible future developments are addressed.
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Abstract The large-eddy-simulation technique is introduced. The mathematical formulation is presented, and several examples are discussed. Some issues related to the resolution of the wall layer are reviewed. Challenges and possible future developments are addressed.
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Large-Eddy Simulation: How Large is Large Enough?
Journal of the Atmospheric Sciences, 2004The length scale evolution of various quantities in a clear convective boundary layer (CBL), a stratocumulustopped boundary layer, and three radiatively cooled (‘‘smoke cloud’’) convective boundary layers are studied by means of large-eddy simulations on a large horizontal domain (25.6 3 25.6 km2).
de Roode, S.R. +2 more
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Adaptive large eddy simulation
Computing and Visualization in Science, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hauser, Andreas, Wittum, G.
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2000
Introduction In large-eddy simulation (LES), the larger three-dimensional unsteady turbulent motions are directly represented, whereas the effects of the smallerscale motions are modelled. In computational expense, LES lies between Reynolds-stress models and DNS, and it is motivated by the limitations of each of these approaches.
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Introduction In large-eddy simulation (LES), the larger three-dimensional unsteady turbulent motions are directly represented, whereas the effects of the smallerscale motions are modelled. In computational expense, LES lies between Reynolds-stress models and DNS, and it is motivated by the limitations of each of these approaches.
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1987
As already stressed in the previous chapters, there is a priori no difficulty in envisaging a numerical solution of the unstationary Navier Stokes equations for rotational flows: the various operators are represented by discrete systems relating the values taken by the velocity or vorticity components, pressure, density, temperature, etc...
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As already stressed in the previous chapters, there is a priori no difficulty in envisaging a numerical solution of the unstationary Navier Stokes equations for rotational flows: the various operators are represented by discrete systems relating the values taken by the velocity or vorticity components, pressure, density, temperature, etc...
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Backscatter Models for Large-Eddy Simulations
Theoretical and Computational Fluid Dynamics, 1997zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Domaradzki, J. Andrzej, Saiki, Eileen M.
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Large-eddy simulation of magnetohydrodynamic turbulence
Computer Physics Communications, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Muller, Wolf-Christian, Carati, Daniele
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Scale Separation for Implicit Large Eddy Simulation
Proceeding of Seventh International Symposium on Turbulence and Shear Flow Phenomena, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hu, X. Y., Adams, N. A.
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