Results 271 to 280 of about 24,405,029 (336)

Turbulence Modeling

Journal of Applied Mechanics, 1983
The historical development of and motivation for turbulence modeling is briefly surveyed. The models of various levels are described, and the performance of second-order models discussed. The various basic constraints to which second-order models are or are not subject are considered, including invariance, material frame indifference, realizability ...
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Turbulence-Model Predictions for Turbulent Boundary Layers

AIAA Journal, 1974
A set of turbulence model equations, originally postulated by Saffman, forms the basis of this three-part study of steady turbulent-boundary-layer structure above a flat plate. In one part of the study the turbulence equations are integrated through the viscous sublayer by means of time-marching numerical integration techniques and the constant in the ...
Saffman, P. G., Wilcox, D. C.
openaire   +2 more sources

Bayesian calibration of the constants of the k–ε turbulence model for a CFD model of street canyon flow

, 2014
In this paper we carry out a Bayesian calibration for uncertainty analysis in Computational Fluid Dynamics modelling of urban flows. Taking the case of airflow in a regular street canyon, and choosing turbulent kinetic energy (TKE) as our quantity of ...
S. Guillas, N. Glover, L. Malki-Epshtein
semanticscholar   +1 more source

Turbulence modelling

The Aeronautical Journal, 1982
An informal Working Party was set up in October 1980 to review the present state-of-the-art in turbulence modelling for aeronautical applications and to make recommendations for future progress in this field. The report assesses the extent to which further developments in design and prediction methods for both external and internal flow are dependent ...
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Behaviour of turbulence models near a turbulent/non-turbulent interface revisited

International Journal of Heat and Fluid Flow, 2005
Abstract The behaviour of turbulence models near a turbulent/non-turbulent interface is investigated. The analysis holds as well for two-equation as for Reynolds stress turbulence models using Daly and Harlow diffusion model. The behaviour near the interface is shown not to be a power law, as usually considered, but a more complex parametric ...
P. Ferrey, B. Aupoix
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A One-Equation Turbulence Model for Aerodynamic Flows

, 1992
P. Spalart
semanticscholar   +1 more source

Development of a Generalized K-ω Two-Equation Turbulence Model

Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 2018
F. Menter, Alexey Matyushenko, R. Lechner   +2 more
semanticscholar   +1 more source

Testing Turbulence Closure Models against Oceanic Turbulence Measurements

2001
Abstract : The long-term goals of this project are to quantify turbulence and to understand the dynamics and implications of turbulent mixing in the coastal ocean.
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The prediction of laminarization with a two-equation model of turbulence

, 1972
W. Jones, B. Launder
semanticscholar   +1 more source

Implicitly Coupled Turbulence Models

2017
Introduction Implicitly coupled pressure- velocity algorithms for incompressible flows introduced a significant increase in convergence rates for the velocity and pressure equations, compared with corresponding segregated algorithms (e.g. SIMPLE or PISO).
Jasak, Hrvoje, Keser, Robert
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