Journal ArticleDOI
A proposed modification of the Germano subgrid‐scale closure method
TLDR
In this paper, the subgrid-scale closure method developed by Germano et al. is modified by use of a least squares technique to minimize the difference between the closure assumption and the resolved stresses.Abstract:
The subgrid‐scale closure method developed by Germano et al. is modified by use of a least squares technique to minimize the difference between the closure assumption and the resolved stresses. This modification removes a source of singularity and is believed to improve the method’s applicability.read more
Citations
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Development and assessment of a coupled strategy for conjugate heat transfer with Large Eddy Simulation: Application to a cooled turbine blade
TL;DR: In this article, the authors describe a coupling strategy of a large-eddy simulation (LES) solver and a heat transfer code within solids on parallel architectures for turbulent flow problems.
Journal ArticleDOI
Experimental and numerical analysis of a lean premixed stratified burner using 1D Raman/Rayleigh scattering and large eddy simulation
G. Kuenne,Florian Seffrin,Frederik Fuest,Thabo Stahler,Anja Ketelheun,Drik Geyer,Johannes Janicka,Andreas Dreizler +7 more
TL;DR: In this paper, a joint experimental and numerical approach is conducted to investigate a turbulent lean premixed stratified flame (flame TSF-A of the Darmstadt stratified burner).
Journal ArticleDOI
Large eddy simulations of plane turbulent impinging jets at moderate Reynolds numbers
TL;DR: In this article, the flow field of plane impinging jets at moderate Reynolds numbers has been computed using large eddy simulation technique and two Reynolds numbers (Re=3000 and 7500) defined by the jet exit conditions are considered.
Journal ArticleDOI
A fractal model for large eddy simulation of turbulent flow
Alberto Scotti,Charles Meneveau +1 more
TL;DR: In this article, a new class of subgrid closures for large eddy simulation (LES) of turbulence is developed, based on the construction of synthetic, fractal subgrid-scale fields.
Journal ArticleDOI
Large-eddy simulation of the temporal mixing layer using the Clark model
TL;DR: In this paper, the Clark model for large-eddy simulation has been reformulated from a theoretical and computational point of view, and a linear stability analysis of the Burgers equation is performed in order to clarify the nature of the instability.
References
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Journal ArticleDOI
General circulation experiments with the primitive equations
TL;DR: In this article, an extended period numerical integration of a baroclinic primitive equation model has been made for the simulation and the study of the dynamics of the atmosphere's general circulation, and the solution corresponding to external gravitational propagation is filtered by requiring the vertically integrated divergence to vanish identically.
Journal ArticleDOI
A dynamic subgrid‐scale eddy viscosity model
TL;DR: In this article, a new eddy viscosity model is presented which alleviates many of the drawbacks of the existing subgrid-scale stress models, such as the inability to represent correctly with a single universal constant different turbulent fields in rotating or sheared flows, near solid walls, or in transitional regimes.
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A numerical study of three-dimensional turbulent channel flow at large Reynolds numbers
TL;DR: In this article, the three-dimensional, primitive equations of motion have been integrated numerically in time for the case of turbulent, plane Poiseuille flow at very large Reynolds numbers.
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A dynamic subgrid‐scale model for compressible turbulence and scalar transport
TL;DR: Germano et al. as discussed by the authors generalized the dynamic subgrid-scale (SGS) model for the large eddy simulation (LES) of compressible flows and transport of a scalar.
On the application of the eddy viscosity concept in the Inertial sub-range of turbulence
TL;DR: In this paper, it was shown that an eddy diffusion hypothesis for use in numerical solutions of turbulent flow problems is consistent with the existence of an inertial subrange at the smallest resolvable scale of the numerical model.