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Direct and Large-Eddy Simulation I : Selected papers from the First ERCOFTAC Workshop on Direct and Large-Eddy Simulation - Peter R. Voke

Direct and Large-Eddy Simulation I

Selected papers from the First ERCOFTAC Workshop on Direct and Large-Eddy Simulation

By: Peter R. Voke (Editor), Leonhard Kleiser (Editor), Jean-Pierre Chollet (Editor)

Hardcover Published: 31st October 1994
ISBN: 9780792331063
Number Of Pages: 434

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It is a truism that turbulence is an unsolved problem, whether in scientific, engin- eering or geophysical terms. It is strange that this remains largely the case even though we now know how to solve directly, with the help of sufficiently large and powerful computers, accurate approximations to the equations that govern tur- bulent flows. The problem lies not with our numerical approximations but with the size of the computational task and the complexity of the solutions we gen- erate, which match the complexity of real turbulence precisely in so far as the computations mimic the real flows. The fact that we can now solve some turbu- lence in this limited sense is nevertheless an enormous step towards the goal of full understanding. Direct and large-eddy simulations are these numerical solutions of turbulence. They reproduce with remarkable fidelity the statistical, structural and dynamical properties of physical turbulent and transitional flows, though since the simula- tions are necessarily time-dependent and three-dimensional they demand the most advanced computer resources at our disposal. The numerical techniques vary from accurate spectral methods and high-order finite differences to simple finite-volume algorithms derived on the principle of embedding fundamental conservation prop- erties in the numerical operations. Genuine direct simulations resolve all the fluid motions fully, and require the highest practical accuracy in their numerical and temporal discretisation. Such simulations have the virtue of great fidelity when carried out carefully, and repre- sent a most powerful tool for investigating the processes of transition to turbulence.

List of Participants
Large-Scale Structures in the Turbulent Flow Near a Right-Angled Cornerp. 1
Very-Large-Scale Structures in DNSp. 13
Eddy Structures in a Simulated Plane Turbulent Jet Educed by Pattern Recognition Analysisp. 25
Experimental Study of Similarity Subgrid-Scale Models of Turbulence in the Far-Field of a Jetp. 37
Direct and Large-Eddy Simulations of Round Jetsp. 49
Subgrid Scale Models based upon the Second Order Structure Function of Velocityp. 61
Significant Terms in Dynamic SGS-Modelingp. 73
Assessment of the Generalised Normal Stress and the Bardina Reynolds Stress Subgrid-Scale Models in Large-Eddy Simulationp. 85
Subgrid-Scale Modelling in the Near Wall Region of Turbulent Wall Bounded Flowsp. 97
Two dimensional Simulations with Subgrid Scale Models for Separated Flowp. 109
A Priori Test of a Subgrid Scale Stress Tensor Model Including Anisotropy and Backscatter Effectsp. 121
Subgrid-modelling in LES of Compressible Flowp. 133
Sheared and Stably Stratified Homogeneous Turbulence: Comparison of DNS and LESp. 145
Direct Numerical Simulation of a Stably Stratified Turbulent Boundary Layerp. 157
A Neutral Stratified Boundary-Layer: A Comparison of Four Large-Eddy Simulation Computer Codesp. 167
The Large-Eddy Simulation of Dispersion of Passive and Chemically Reactive Pollutants in a Convective Atmospheric Boundary Layerp. 179
Numerical Simulation of Breaking Gravity Waves below a Critical Levelp. 189
Stability of the Natural-Convection Flow in Differentially Heated Rectangular Enclosures with Adiabatic Horizontal Wallsp. 201
Direct Simulation of Breakdown to Turbulence Following Oblique Instability Waves in a Supersonic Boundary Layerp. 213
Mechanisms and Models of Boundary Layer Receptivity Deduced from Large-Eddy Simulation of By-pass Transitionp. 225
Receptivity by Direct Numerical Simulationp. 237
Direct Numerical Simulation of Transition in a Spatially Growing Compressible Boundary Layer Using a New Fourier Methodp. 249
Large-Eddy Simulation of Flow and Heat Transfer in Compact Heat Exchangersp. 261
Large-Eddy Simulation of Turbulent Flow through a Straight Square Duct and a [actual symbol not reproducible] bendp. 273
Numerical Simulation of Turbulent Flow over a Wavy Boundaryp. 287
Large-Eddy Simulation of Turbulent Boundary Layer Flow over a Hemispherep. 299
Large-Eddy Simulation of Compound Channel Flow with One Floodplain at [actual symbol not reproducible]p. 311
Large-Eddy Simulation Applied to an Electromagnetic Flowmeterp. 325
On the Formation of Small Scales in a Compressible Mixing Layerp. 335
Direct Simulation of Turbulence Phenomena in Compressible Boundary Layersp. 347
DNS of a M = 2 Shock Interacting with Isotropic Turbulencep. 359
Direct and Large-Eddy Simulations of Chemically Reacting Flowsp. 375
Flow Mechanisms and Heat Transfer in Rayleigh-Benard Convection at Small Prandtl Numbersp. 387
Direct and Large-Eddy Simulation of Transient Buoyant Plumes: a Comparison with Experimentp. 399
Numerical Investigation of Turbulent Structures in Thermal Impinging Jetsp. 411
Numerical Simulations of 2 D Turbulent Natural Convection in Differentially Heated Cavities of Aspect Ratios 1 and 1p. 423
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780792331063
ISBN-10: 0792331060
Series: Fluid Mechanics and Its Applications
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 434
Published: 31st October 1994
Country of Publication: NL
Dimensions (cm): 23.39 x 15.6  x 2.39
Weight (kg): 0.79

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