DNS of Wall-Bounded Turbulent Flows

DNS of Wall-Bounded Turbulent Flows PDF Author: Tapan K. Sengupta
Publisher: Springer
ISBN: 9811300380
Category : Technology & Engineering
Languages : en
Pages : 358

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Book Description
This book highlights by careful documentation of developments what led to tracking the growth of deterministic disturbances inside the shear layer from receptivity to fully developed turbulent flow stages. Associated theoretical and numerical developments are addressed from basic level so that an uninitiated reader can also follow the materials which lead to the solution of a long-standing problem. Solving Navier-Stokes equation by direct numerical simulation (DNS) from the first principle has been considered as one of the most challenging problems of understanding what causes transition to turbulence. Therefore, this book is a very useful addition to advanced CFD and advanced fluid mechanics courses.

DNS of Wall-Bounded Turbulent Flows

DNS of Wall-Bounded Turbulent Flows PDF Author: Tapan K. Sengupta
Publisher: Springer
ISBN: 9811300380
Category : Technology & Engineering
Languages : en
Pages : 358

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Book Description
This book highlights by careful documentation of developments what led to tracking the growth of deterministic disturbances inside the shear layer from receptivity to fully developed turbulent flow stages. Associated theoretical and numerical developments are addressed from basic level so that an uninitiated reader can also follow the materials which lead to the solution of a long-standing problem. Solving Navier-Stokes equation by direct numerical simulation (DNS) from the first principle has been considered as one of the most challenging problems of understanding what causes transition to turbulence. Therefore, this book is a very useful addition to advanced CFD and advanced fluid mechanics courses.

Particles in Wall-Bounded Turbulent Flows: Deposition, Re-Suspension and Agglomeration

Particles in Wall-Bounded Turbulent Flows: Deposition, Re-Suspension and Agglomeration PDF Author: Jean-Pierre Minier
Publisher: Springer
ISBN: 3319415670
Category : Technology & Engineering
Languages : en
Pages : 261

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Book Description
The book presents an up-to-date review of turbulent two-phase flows with the dispersed phase, with an emphasis on the dynamics in the near-wall region. New insights to the flow physics are provided by direct numerical simuation and by fine experimental techniques. Also included are models of particle dynamics in wall-bounded turbulent flows, and a description of particle surface interactions including muti-layer deposition and re-suspension.

Near-wall Turbulence

Near-wall Turbulence PDF Author: Naim Afgan
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 959

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Book Description


Fluid Flow Phenomena

Fluid Flow Phenomena PDF Author: Paolo Orlandi
Publisher: Springer Science & Business Media
ISBN: 9401142815
Category : Science
Languages : en
Pages : 369

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Book Description
This book deals with the simulation of the incompressible Navier-Stokes equations for laminar and turbulent flows. The book is limited to explaining and employing the finite difference method. It furnishes a large number of source codes which permit to play with the Navier-Stokes equations and to understand the complex physics related to fluid mechanics. Numerical simulations are useful tools to understand the complexity of the flows, which often is difficult to derive from laboratory experiments. This book, then, can be very useful to scholars doing laboratory experiments, since they often do not have extra time to study the large variety of numerical methods; furthermore they cannot spend more time in transferring one of the methods into a computer language. By means of numerical simulations, for example, insights into the vorticity field can be obtained which are difficult to obtain by measurements. This book can be used by graduate as well as undergraduate students while reading books on theoretical fluid mechanics; it teaches how to simulate the dynamics of flow fields on personal computers. This will provide a better way of understanding the theory. Two chapters on Large Eddy Simulations have been included, since this is a methodology that in the near future will allow more universal turbulence models for practical applications. The direct simulation of the Navier-Stokes equations (DNS) is simple by finite-differences, that are satisfactory to reproduce the dynamics of turbulent flows. A large part of the book is devoted to the study of homogeneous and wall turbulent flows. In the second chapter the elementary concept of finite difference is given to solve parabolic and elliptical partial differential equations. In successive chapters the 1D, 2D, and 3D Navier-Stokes equations are solved in Cartesian and cylindrical coordinates. Finally, Large Eddy Simulations are performed to check the importance of the subgrid scale models. Results for turbulent and laminar flows are discussed, with particular emphasis on vortex dynamics. This volume will be of interest to graduate students and researchers wanting to compare experiments and numerical simulations, and to workers in the mechanical and aeronautic industries.

IUTAM Symposium on The Physics of Wall-Bounded Turbulent Flows on Rough Walls

IUTAM Symposium on The Physics of Wall-Bounded Turbulent Flows on Rough Walls PDF Author: T. B. Nickels
Publisher: Springer Science & Business Media
ISBN: 9048196310
Category : Technology & Engineering
Languages : en
Pages : 183

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Book Description
The study of wall-bounded turbulent ows is of considerable interest from both scienti c and practical view points. As such it has attracted a great deal of research over the last 100 years. Much research has concentratedon ows over smooth walls since these are simpler from experimental, numerical and theoretical standpoints. The ow over rough walls has still received considerable attention but progress has necessarilybeenslower.Perhapsthemostessentialproblem(certainlyfromaprac- cal point of view) is to be able to predict the skin-frictiondrag acting on a plate (or a body) given a certain known roughness characteristic of the surface. Unfortunately this has proved to be very dif cult since even the simplest rough surfaces can be characterised by a number of different parameters and we still cannot directly c- nectthese tothe uiddynamicdragin a givensituation.Varioustheoriesandmodels have been proposed in order to make progress but there is still some disagreement in the community as to the correct understanding of these important ows.

DNS of Turbulent Wall Bounded Flows with a Passive Scalar

DNS of Turbulent Wall Bounded Flows with a Passive Scalar PDF Author: Juan Guillermo Araya
Publisher: ProQuest
ISBN: 9780549988335
Category :
Languages : en
Pages : 382

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Book Description


Navier-Stokes Turbulence

Navier-Stokes Turbulence PDF Author: Wolfgang Kollmann
Publisher: Springer Nature
ISBN: 3031595785
Category :
Languages : en
Pages : 876

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Book Description


On the Structure of Wall-bounded Turbulent Flows

On the Structure of Wall-bounded Turbulent Flows PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 52

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Book Description


Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction

Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction PDF Author: Stroh, Alexander
Publisher: KIT Scientific Publishing
ISBN: 3731507668
Category :
Languages : en
Pages : 216

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Book Description


Compressibility, Turbulence and High Speed Flow

Compressibility, Turbulence and High Speed Flow PDF Author: Thomas B. Gatski
Publisher: Academic Press
ISBN: 012397318X
Category : Science
Languages : en
Pages : 343

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Book Description
Compressibility, Turbulence and High Speed Flow introduces the reader to the field of compressible turbulence and compressible turbulent flows across a broad speed range, through a unique complimentary treatment of both the theoretical foundations and the measurement and analysis tools currently used. The book provides the reader with the necessary background and current trends in the theoretical and experimental aspects of compressible turbulent flows and compressible turbulence. Detailed derivations of the pertinent equations describing the motion of such turbulent flows is provided and an extensive discussion of the various approaches used in predicting both free shear and wall bounded flows is presented. Experimental measurement techniques common to the compressible flow regime are introduced with particular emphasis on the unique challenges presented by high speed flows. Both experimental and numerical simulation work is supplied throughout to provide the reader with an overall perspective of current trends. An introduction to current techniques in compressible turbulent flow analysis An approach that enables engineers to identify and solve complex compressible flow challenges Prediction methodologies, including the Reynolds-averaged Navier Stokes (RANS) method, scale filtered methods and direct numerical simulation (DNS) Current strategies focusing on compressible flow control