Direct Numerical Simulation Of Turbulent Mixing Layers

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Direct Numerical Simulation Of Turbulent Mixing Layers

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Author : Amid Ansari
language : en
Publisher:
Release Date : 1995

Direct Numerical Simulation Of Turbulent Mixing Layers written by Amid Ansari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

Direct Numerical Simulation Of Spatially Developing Compressible And Turbulent Mixing Layers

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Author : Calvin Lui
language : en
Publisher:
Release Date : 2001

Direct Numerical Simulation Of Spatially Developing Compressible And Turbulent Mixing Layers written by Calvin Lui and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Coarse Grained Simulation And Turbulent Mixing

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Author : Fenando F. Grinstein
language : en
Publisher: Cambridge University Press
Release Date : 2016-06-30

Coarse Grained Simulation And Turbulent Mixing written by Fenando F. Grinstein and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-30 with Science categories.

Reviews our current understanding of the subject. For graduate students and researchers in computational fluid dynamics and turbulence.

Direct Numerical Simulation Of A Perturbed Turbulent Mixing Layer

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Author : J. J. Riley
language : en
Publisher:
Release Date : 1980

Direct Numerical Simulation Of A Perturbed Turbulent Mixing Layer written by J. J. Riley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.

Direct Numerical Simulation For Turbulent Reacting Flows

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Author : Thierry Baritaud
language : en
Publisher: Editions TECHNIP
Release Date : 1996

Direct Numerical Simulation For Turbulent Reacting Flows written by Thierry Baritaud and has been published by Editions TECHNIP this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Science categories.

Contents: Description of accurate boundary conditions for the simulation of reactive flows. Parallel direct numerical simulation of turbulent reactive flow. Flame-wall interaction and heat flux modelling in turbulent channel flow. A numerical study of laminar flame wall interaction with detailed chemistry: wall temperature effects. Modeling and simulation of turbulent flame kernel evolution. Experimental and theoretical analysis of flame surface density modelling for premixed turbulent combustion. Gradient and counter-gradient transport in turbulent premixed flames. Direct numerical simulation of turbulent flames with complex chemical kinetics. Effects of curvature and unsteadiness in diffusion flames. Implications for turbulent diffusion combustion. Numerical simulations of autoignition in turbulent mixing flows. Stabilization processes of diffusion flames. References.

Modeling And Simulation Of Turbulent Mixing And Reaction

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Author : Daniel Livescu
language : en
Publisher: Springer Nature
Release Date : 2020-02-19

Modeling And Simulation Of Turbulent Mixing And Reaction written by Daniel Livescu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-19 with Technology & Engineering categories.

This book highlights recent research advances in the area of turbulent flows from both industry and academia for applications in the area of Aerospace and Mechanical engineering. Contributions include modeling, simulations and experiments meant for researchers, professionals and students in the area.

Direct Numerical Simulation Of Turbulent Mixing In A Rough Wall Flow

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Author : K. Tsujimoto
language : en
Publisher:
Release Date : 2001

Direct Numerical Simulation Of Turbulent Mixing In A Rough Wall Flow written by K. Tsujimoto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Rough-wall turbulent flows are more common in engineering application than smooth-wall turbulent flows. Modification of mean flow and turbulence property have been established by enormous experiments. However, details of mechanism of rough-wall turbulence has been understood little because spatial resolution is limited in experiments. Meanwhile, Direct Numerical Simulation (DNS) of a rough-wall turbulent flows which is capable of giving high resolution data requires prohibitively heavy computer power and accordingly, no other DNS data are available than those published by the present authors (Miyake et al., 1999). Our first DNS considered sandgrain roughness whose effect was implemented by profile drag based on Stokes drag and could successfully reproduce experimentally established rough-wall turbulent flow such as downward shift of straight line of logarithmic mean velocity distribution and vanishing of viscous sublayer. It was confirmed that the layer adjacent to the wall up to several tens in wall unit where smooth-wall turbulence exhibits autonomous property independent on the layer above it, is taken over by the layer having property of logarithmic layer, in rough-wall turbulence. While quasi-streamwise vortices play major role to generate high turbulent shear stress in this near-wall layer in smooth-wall turbulent flow, roughness destroy this vortical system and consequently, different mixing system which replaces the role of quasi-streamwise vortices should be found in rough-wall layer. Present work intends to investigate the turbulent mixing in the layer close to the wall of rough-wall turbulence by a DNS of more sound numerical conditions, i.e., without using any model for roughness element.

Coherent Structures In A Simulated Turbulent Mixing Layer

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-08-16

Coherent Structures In A Simulated Turbulent Mixing Layer written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-16 with categories.

A direct numerical simulation of a plane turbulent mixing layer has been performed. The simulation was initialized using two turbulent velocity fields obtained from direct numerical simulation of a turbulent boundary layer at momentum thickness Reynolds number 300 (Spalart, 1988). The mixing layer is allowed to evolve long enough for self-similar linear growth to occur, with the visual thickness Reynolds number reaching 14,000. The simulated flow is examined for evidence of the coherent structures expected in a mixing layer (rollers and rib vortices). Before the onset of self-similar growth, such structures are present with properties similar to the corresponding laminar or transitional structures. In the self-similar growth regime, however, only the rollers are present with no indication of rib vortices and no indication of conventional pairing. This results in a reduction of mixing and layer growth. Moser, Robert D. and Rogers, Michael M. Ames Research Center NASA-TM-103980, A-92197, NAS 1.15:103980 RTOP 505-59-53...

Coherent Structures In A Simulated Turbulent Mixing Layer

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Author :
language : en
Publisher:
Release Date : 1992

Coherent Structures In A Simulated Turbulent Mixing Layer written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Numerical Simulation Of Turbulent Flows And Noise Generation

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Author : Christophe Brun
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-03-07

Numerical Simulation Of Turbulent Flows And Noise Generation written by Christophe Brun and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-03-07 with Technology & Engineering categories.

Large Eddy Simulation (LES) is a high-fidelity approach to the numerical simulation of turbulent flows. Recent developments have shown LES to be able to predict aerodynamic noise generation and propagation as well as the turbulent flow, by means of either a hybrid or a direct approach. This book is based on the results of two French/German research groups working on LES simulations in complex geometries and noise generation in turbulent flows. The results provide insights into modern prediction approaches for turbulent flows and noise generation mechanisms as well as their use for novel noise reduction concepts.