Results 71 to 80 of about 208,604 (196)
Subgrid or Reynolds stress-modeling for three-dimensional turbulence computations [PDF]
A review is given of recent advances in two distinct computational methods for evaluating turbulence fields, namely, statistical Reynolds stress modeling and turbulence simulation, where large eddies are followed in time.
Rubesin, M. W.
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Aircraft Dynamic Modeling in Turbulence [PDF]
, 2012 A method for accurately identifying aircraft dynamic models in turbulence was developed and demonstrated. The method uses orthogonal optimized multisine excitation inputs and an analytic method for enhancing signal-to-noise ratio for dynamic modeling in ...
Cunninham, Kevin, Morelli, Eugene A.
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The Effect of Turbulence Modeling on the Mixing Characteristics of Several Fuel Injectors at Hypervelocity Flow Conditions [PDF]
CFD analysis is presented on the effects of turbulence modeling choices on the mixing characteristics and performance of three fuel injectors at hypervelocity flow conditions.
Baurle, Robert A. +4 more
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Strategies for Enhancing One-Equation Turbulence Model Predictions Using Gene-Expression Programming
FluidsThis paper introduces innovative approaches to enhance and develop one-equation RANS models using gene-expression programming. Two distinct strategies are explored: overcoming the limitations of the Boussinesq hypothesis and formulating a novel one ...
Tony Di Fabbio +4 more
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PDF turbulence modeling and DNS [PDF]
The problem of time discontinuity (or jump condition) in the coalescence/dispersion (C/D) mixing model is addressed in probability density function (pdf). A C/D mixing model continuous in time is introduced.
Hsu, A. T.
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Turbulence modeling for hypersonic flows [PDF]
Turbulence modeling for high speed compressible flows is described and discussed. Starting with the compressible Navier-Stokes equations, methods of statistical averaging are described by means of which the Reynolds-averaged Navier-Stokes equations are ...
Coakley, T. J., Marvin, J. G.
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Turbulence and surface heat transfer near the stagnation point of a circular cylinder in turbulent flow [PDF]
A turbulent boundary layer flow analysis of the momentum and thermal flow fields near the forward stagnation point due to a circular cylinder in turbulent cross flow is presented.
Wang, C. R.
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Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes
Applied and Computational MechanicsDetached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter’s Shear Stress Transport (SST) model as well as the DES variant of the Kok's Turbulent/Non-Turbulent model (TNT), Extra ...
Hájek L. +3 more
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Modeling of turbulence and transition [PDF]
The first objective is to evaluate current two-equation and second order closure turbulence models using available direct numerical simulations and experiments, and to identify the models which represent the state of the art in turbulence modeling.
Shih, Tsan-Hsing
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Turbulent Combustion Modeling [PDF]
, 2011 Preface Table of Contents List of Contributors Part I Introductory Concepts: 1 The Role of Combustion Technology in the 21st Century, by R.W. Bilger 2 Turbulent Combustion: Concepts, Governing Equations and Modeling Strategies, by Tarek Echekki and Epaminondas Mastorakos Part II Recent Advances and Trends in Turbulent Combustion Models: 3 The Flamelet ...
openaire +1 more source