Inertial range scaling of scalar flux spectra in uniformly sheared turbulence (2007)
Bos, Wouter J. T., Bertoglio, Jean-Pierre
A model based on two-point closure theory of turbulence is proposed and applied to study the Reynolds number dependency of the scalar flux spectra in homogeneous shear flow with a cross-stream...
Decay of scalar variance in isotropic turbulence in a bounded domain (2007)
Lamaison, Guillevic, Bos, Wouter, Shao, L., Bertoglio, Jean-Pierre
The decay of scalar variance in isotropic turbulence in a bounded domain is investigated. Extending the study of Touil, Bertoglio and Shao (2002; Journal of Turbulence, 03, 49) to the case of a...
A single-time two-point closure based on fluid particle displacements (2007)
Bos, Wouter, Bertoglio, Jean-Pierre
A new single-time two-point closure is proposed, in which the equation for the two-point correlation between the displacement of a fluid particle and the velocity allows one to estimate a Lagrangian...
Spectral imbalance and the normalized dissipation rate of turbulence (2007)
Bos, Wouter J. T., Shao, L., Bertoglio, Jean-Pierre
The normalized turbulent dissipation rate $C_\epsilon$ is studied in decaying and forced turbulence by direct numerical simulations, large-eddy simulations, and closure calculations. A large...
Dynamics of spectrally truncated inviscid turbulence (2007)
Bos, Wouter J. T., Bertoglio, Jean-Pierre
The evolution of the turbulent energy spectrum for the inviscid spectrally truncated Euler equations is studied by closure calculations. The observed behavior is similar to the one found in direct...
Statistical modelling of turbulence and applications to Large-Eddy Simulation (2007)
The subject of this presentation is turbulence modelling and applications to Computational Fluid Dynamics (CFD). A special attention is paid to the spectral models of turbulence, also called...
Decay of scalar variance in isotropic turbulence in a bounded domain (2007)
Lamaison, Guillevic, Bos, Wouter, Shao, L., Bertoglio, Jean-Pierre
The decay of scalar variance in isotropic turbulence in a bounded domain is investigated. Extending the study of Touil, Bertoglio and Shao (2002; Journal of Turbulence, 03, 49) to the case of a...
Inertial range scaling of scalar flux spectra in uniformly sheared turbulence (2007)
Bos, Wouter, Bertoglio, Jean-Pierre
A model based on two-point closure theory of turbulence is proposed and applied to study the Reynolds number dependency of the scalar flux spectra in homogeneous shear flow with a cross-stream...
Spectral imbalance and the normalized dissipation rate of turbulence (2007)
Bos, Wouter, Shao, L., Bertoglio, Jean-Pierre
The normalized turbulent dissipation rate $C_\epsilon$ is studied in decaying and forced turbulence by direct numerical simulations, large-eddy simulations, and closure calculations. A large...
Statistical modelling of turbulence and applications to Large-Eddy Simulation (2007)
The subject of this presentation is turbulence modelling and applications to Computational Fluid Dynamics (CFD). A special attention is paid to the spectral models of turbulence, also called...
Decay of scalar variance in isotropic turbulence in a bounded domain (2007)
Lamaison, Guillevic, Bos, Wouter, Shao, L., Bertoglio, Jean-Pierre
The decay of scalar variance in isotropic turbulence in a bounded domain is investigated. Extending the study of Touil, Bertoglio and Shao (2002; Journal of Turbulence, 03, 49) to the case of a...
Inertial range scaling of scalar flux spectra in uniformly sheared turbulence (2007)
Bos, Wouter, Bertoglio, Jean-Pierre
A model based on two-point closure theory of turbulence is proposed and applied to study the Reynolds number dependency of the scalar flux spectra in homogeneous shear flow with a cross-stream...
Spectral imbalance and the normalized dissipation rate of turbulence (2007)
Bos, Wouter, Shao, L., Bertoglio, Jean-Pierre
The normalized turbulent dissipation rate $C_\epsilon$ is studied in decaying and forced turbulence by direct numerical simulations, large-eddy simulations, and closure calculations. A large...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Dynamics of spectrally truncated inviscid turbulence (2006)
Bos, Wouter, Bertoglio, Jean-Pierre
The evolution of the turbulent energy spectrum for the inviscid spectrally truncated Euler equations is studied by closure calculations. The observed behavior is similar to the one found in direct...
A single-time two-point closure based on fluid particle displacements (2006)
Bos, Wouter, Bertoglio, Jean-Pierre
A new single-time two-point closure is proposed, in which the equation for the two-point correlation between the displacement of a fluid particle and the velocity allows one to estimate a Lagrangian...
Dynamics of spectrally truncated inviscid turbulence (2006)
Bos, Wouter, Bertoglio, Jean-Pierre
The evolution of the turbulent energy spectrum for the inviscid spectrally truncated Euler equations is studied by closure calculations. The observed behavior is similar to the one found in direct...
A single-time two-point closure based on fluid particle displacements (2006)
Bos, Wouter, Bertoglio, Jean-Pierre
A new single-time two-point closure is proposed, in which the equation for the two-point correlation between the displacement of a fluid particle and the velocity allows one to estimate a Lagrangian...
Moreau, Antoine, Teytaud, Olivier, Bertoglio, Jean-Pierre
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in...
Analyse de sous-maille par densité présumée en Simulation des Grandes Echelles (2004)
Moreau, Antoine, Elmo, Marc, Bertoglio, Jean-Pierre
On s'intéresse à la modélisation des termes de réaction en Simulation des Grandes Echelles d'écoulements turbulents. La densité de sous-maille est souvent approchée dans ce cadre par une loi...
Analyse de sous-maille par densité présumée en Simulation des Grandes Echelles (2004)
Moreau, Antoine, Elmo, Marc, Bertoglio, Jean-Pierre
On s'intéresse à la modélisation des termes de réaction en Simulation des Grandes Echelles d'écoulements turbulents. La densité de sous-maille est souvent approchée dans ce cadre par une loi...
Analyse de sous-maille par densité présumée en Simulation des Grandes Echelles (2004)
Moreau, Antoine, Elmo, Marc, Bertoglio, Jean-Pierre
On s'intéresse à la modélisation des termes de réaction en Simulation des Grandes Echelles d'écoulements turbulents. La densité de sous-maille est souvent approchée dans ce cadre par une loi...
Analyse de sous-maille par densité présumée en Simulation des Grandes Echelles (2004)
Moreau, Antoine, Elmo, Marc, Bertoglio, Jean-Pierre
On s'intéresse à la modélisation des termes de réaction en Simulation des Grandes Echelles d'écoulements turbulents. La densité de sous-maille est souvent approchée dans ce cadre par une loi...
Two-point closures and turbulence modeling (2003)
The main ideas underlying the derivation of the usual two-point closures are reviewed. The Direct Interaction Approximation (DIA) and related closures, and the Eddy-Damped Quasi Normal Markovian...
Two-point closures and turbulence modeling (2003)
The main ideas underlying the derivation of the usual two-point closures are reviewed. The Direct Interaction Approximation (DIA) and related closures, and the Eddy-Damped Quasi Normal Markovian...
Energy Transfer And Triadic Interactions In Compressible Turbulence (1997)
F. Bataille, F. Bataille, Ye Zhou, Ye Zhou, Jean-pierre Bertoglio, Jean-pierre Bertoglio
. Using a two-point closure theory, the Eddy-Damped-Quasi-Normal-Markovian (EDQNM) approximation, we have investigated the energy transfer process and triadic interactions of compressible turbulence....
Radiative Energy Transfer in Compressible Turbulence (1995)
Francoise Bataille And, Francoise Bataille, Ye Zhou, Jean-pierre Bertoglio
This Letter investigates the compressible energy transfer process. We extend a methodology developed originally for incompressible turbulence and use databases from numerical simulations of a weak...
A stochastic subgrid model for sheared turbulence (1985)
A new subgrid model for homogeneous turbulence is proposed. The model is used in a method of Large-Eddy Simulation coupled with an EDQNM prediction of the statistical properties of the small scales....
A stochastic subgrid model for sheared turbulence (1985)
A new subgrid model for homogeneous turbulence is proposed. The model is used in a method of Large-Eddy Simulation coupled with an EDQNM prediction of the statistical properties of the small scales....