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  1. Flow, Turbulence and Combustion
  2. Flow, Turbulence and Combustion : Volume 63
  3. Flow, Turbulence and Combustion : Volume 63, Issue 1-4, January 2000
  4. A Length-Scale Equation
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Flow, Turbulence and Combustion : Volume 98
Flow, Turbulence and Combustion : Volume 97
Flow, Turbulence and Combustion : Volume 96
Flow, Turbulence and Combustion : Volume 95
Flow, Turbulence and Combustion : Volume 94
Flow, Turbulence and Combustion : Volume 93
Flow, Turbulence and Combustion : Volume 92
Flow, Turbulence and Combustion : Volume 91
Flow, Turbulence and Combustion : Volume 90
Flow, Turbulence and Combustion : Volume 89
Flow, Turbulence and Combustion : Volume 88
Flow, Turbulence and Combustion : Volume 87
Flow, Turbulence and Combustion : Volume 86
Flow, Turbulence and Combustion : Volume 85
Flow, Turbulence and Combustion : Volume 84
Flow, Turbulence and Combustion : Volume 83
Flow, Turbulence and Combustion : Volume 82
Flow, Turbulence and Combustion : Volume 81
Flow, Turbulence and Combustion : Volume 80
Flow, Turbulence and Combustion : Volume 79
Flow, Turbulence and Combustion : Volume 78
Flow, Turbulence and Combustion : Volume 77
Flow, Turbulence and Combustion : Volume 76
Flow, Turbulence and Combustion : Volume 75
Flow, Turbulence and Combustion : Volume 74
Flow, Turbulence and Combustion : Volume 73
Flow, Turbulence and Combustion : Volume 72
Flow, Turbulence and Combustion : Volume 71
Flow, Turbulence and Combustion : Volume 70
Flow, Turbulence and Combustion : Volume 69
Flow, Turbulence and Combustion : Volume 68
Flow, Turbulence and Combustion : Volume 67
Flow, Turbulence and Combustion : Volume 66
Flow, Turbulence and Combustion : Volume 65
Flow, Turbulence and Combustion : Volume 64
Flow, Turbulence and Combustion : Volume 63
Flow, Turbulence and Combustion : Volume 63, Issue 1-4, January 2000
A Length-Scale Equation
Dedication
On Algebraic Second Moment Models
Modeling the Dynamics of Ensemble-Averaged Linear Disturbances in Homogeneous Shear Flow
Progress in the Use of Non-Linear Two-Equation Models in the Computation of Convective Heat-Transfer in Impinging and Separated Flows
Advanced Turbulence Modelling of Separated Flow in a Diffuser
CFD Analysis of a Thermal Plume and the Indoor Air Flow Using k-ε Models with Buoyancy Effects
A New Low-Reynolds-Number One-Equation Model of Turbulence
Separation-Induced Transition to Turbulence: Second-Moment Closure Modelling
Two-Equation Turbulence Modelling of a Transitional Separation Bubble
Predicting Buoyant Shear Flows Using Anisotropic Dissipation Rate Models
DNS and Modelling of Passive Scalar Transport in Turbulent Channel Flow with a Focus on Scalar Dissipation Rate Modelling
From Two-Point Closures of Isotropic Turbulence to LES of Shear Flows
Approximate Wall Boundary Conditions in the Large-Eddy Simulation of High Reynolds Number Flow
Detached-Eddy Simulations Past a Circular Cylinder
The 3D Transition to Turbulence in Wake Flows by Means of Direct Numerical Simulation
A Direct Numerical Study of Transport and Anisotropy in a Stably Stratified Turbulent Flow with Uniform Horizontal Shear
The Application of a Laminar Flamelet Model to Confined Explosion Hazards
A Probability Density Function Method for Modelling Liquid Fuel Sprays
Control of Combustion Oscillations Close to Stoichiometry
Turbulent Air-Flow Measurement with the Aid of 3-D Particle Tracking Velocimetry in a Curved Square Bend
Reynolds Number Dependence of Energy Spectra in the Overlap Region of Isotropic Turbulence
Author Index, Volume 63 (1999/2000)
Flow, Turbulence and Combustion : Volume 62
Flow, Turbulence and Combustion : Volume 61
Flow, Turbulence and Combustion : Volume 60
Flow, Turbulence and Combustion : Volume 59
Flow, Turbulence and Combustion : Volume 58

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A Length-Scale Equation

Content Provider Springer Nature Link
Author Lumley, John L. Yang, Zhigang Shih, Tsan Hsing
Copyright Year 2000
Abstract We derive an equation for the average length-scale in a turbulent flow from a simple physical model. This is a tensorial length-scale. We use as a model the evolution of a blob of turbulent kinetic energy under the influence of production, dissipation, and transport, as well as distortion by the mean motion. A single length-scale is defined which is biased toward the smallest of the scales in the various directions. Constants are estimated by consideration of homogeneous decay. Preliminary computations are carried out in a mixing layer and a two-dimensional jet, using the new length-scale equation and the equation for the turbulent kinetic energy. The results are compared with data and with the predictions of the classical k-epsilon equations; the new results are quite satisfactory. In particular, the plane jet/round jet anomaly is approximately resolved.
Starting Page 1
Ending Page 21
Page Count 21
File Format PDF
ISSN 13866184
Journal Flow, Turbulence and Combustion
Volume Number 63
Issue Number 1-4
e-ISSN 15731987
Language English
Publisher Kluwer Academic Publishers
Publisher Date 2000-01-01
Publisher Place Dordrecht
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Mechanics Automotive and Aerospace Engineering, Traffic
Content Type Text
Resource Type Article
Subject Physics and Astronomy Physical and Theoretical Chemistry Chemical Engineering
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