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Book ChapterDOI

Large-Eddy Simulation of Turbulent Boundary Layer and Channel Flow at High Reynolds Number

TLDR
In this article, a two-dimensional high Reynolds number turbulent flat plate channel and boundary layer flow is simulated by numerical integration of the three-dimensional, time-dependent transport equations for grid scale quantities.
Abstract
Statistically steady and two-dimensional high Reynolds number turbulent flat plate channel and boundary layer flow is simulated by numerical integration of the three-dimensional, time-dependent transport equations for grid scale (GS) quantities. Detailed comparisons of the numerical results are made witth measurements of statistical mean values. The structure of the fluctuating and instantaneous fields is displayed. Especially the influence of the treatment of the mean convection terms on the results is discussed.

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Citations
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Journal ArticleDOI

Highly resolved large-eddy simulation of separated flow in a channel with streamwise periodic constrictions

TL;DR: In this article, a large-eddy simulation is used to investigate the mean and turbulence properties of a separated flow in a channel constricted by periodically distributed hill-shaped protrusions on one wall.
Journal ArticleDOI

Subgrid‐scale energy transfer in the near‐wall region of turbulent flows

TL;DR: In this article, the velocity fields are split into three parts: a statistically stationary mean flow, the resolved, and the unresolved turbulent fluctuations, based on the application of a cutoff filter in spectral space.
Journal ArticleDOI

Boundary layers and wind in cylindrical Rayleigh–Bénard cells

TL;DR: In this paper, the authors analyzed the wind and boundary layer properties of turbulent Rayleigh-Benard convection in a cylindrical container with aspect ratio one for Prandtl number Pr = 0.786 and Rayleigh numbers (Ra) up to 10^9 by means of highly resolved direct numerical simulations.
Journal ArticleDOI

DNS of a turbulent boundary layer with separation

TL;DR: In this paper, a direct numerical simulation (DNS) of a turbulent boundary layer that undergoes separation due to the presence of a pressure gradient at a moderate Reynolds number is presented.
References
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Book

Boundary layer theory

TL;DR: The flow laws of the actual flows at high Reynolds numbers differ considerably from those of the laminar flows treated in the preceding part, denoted as turbulence as discussed by the authors, and the actual flow is very different from that of the Poiseuille flow.
Journal ArticleDOI

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.
Journal ArticleDOI

Subgrid Scale Model for Finite Difference Simulations of Turbulent Flows in Plane Channels and Annuli

TL;DR: In this paper, the finite difference procedure and the subgrid scale (SGS) motion model are used to simulate high Reynolds number turbulent flows of incompressible fluids in plane channels and annuli, and the boundary conditions are formulated in a manner consistent with the SGS theory.
Journal ArticleDOI

Numerical investigation of turbulent channel flow

TL;DR: In this article, a large-scale flow field was obtained by directly integrating the filtered, three-dimensional, time dependent, Navier-Stokes equations, and small-scale field motions were simulated through an eddy viscosity model.
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