Contribution a l'analyse de la turbulence associée a des vitesses moyennes
Author: Antoine Craya
Publisher:
Published: 1958
Total Pages: 140
ISBN-13:
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Contribution à l'analyse de la turbulence associée à des vitesses moyennes
Author: Antoine Craya
Publisher:
Published: 1958
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKVariable Density Fluid Turbulence
Author: P. Chassaing
Publisher: Springer Science & Business Media
Published: 2013-06-29
Total Pages: 387
ISBN-13: 9401700753
DOWNLOAD EBOOKThe first part aims at providing the physical and theoretical framework of the analysis of density variations in fully turbulent flows. Its scope is deliberately educational. In the second part, basic data on dynamical and scalar properties of variable density turbulent flows are presented and discussed, based on experimental data and/or results from direct numerical simulations. This part is rather concerned with a research audience. The last part is more directly devoted to an engineering audience and deals with prediction methods for turbulent flows of variable density fluid. Both first and second order, single point modeling are discussed, with special emphasis on the capability to include specific variable density / compressibility effects.
Physics of Wave Turbulence
Author: Sébastien Galtier
Publisher: Cambridge University Press
Published: 2022-12-31
Total Pages: 291
ISBN-13: 1009275895
DOWNLOAD EBOOKA rigorously comprehensive and interdisciplinary text on wave turbulence, for graduate students and researchers in physics-related fields.
Theories of Turbulence
Author: Martin Oberlack
Publisher: Springer
Published: 2014-05-04
Total Pages: 377
ISBN-13: 3709125642
DOWNLOAD EBOOKThe term "turbulence” is used for a large variety of dynamical phenomena of fluids in motion whenever the details of the flow appear to be random and average properties are of primary interest. Just as wide ranging are the theoretical methods that have been applied towards a better understanding of fluid turbulence. In this book a number of these methods are described and applied to a broad range of problems from the transition to turbulence to asymptotic turbulence when the inertial part of the spectrum is fully developed. Statistical as well as nonstatistical treatments are presented, but a complete coverage of the subject is not attempted. The book will be of interest to scientists and engineers who wish to familiarize themselves with modern developments in theories of turbulence. The fact that the properties of turbulent fluid flow are addressed from very different points of view makes this volume rather unique among presently available books on turbulence.
Turbulent Flows
Author: Stephen B. Pope
Publisher: Cambridge University Press
Published: 2000-08-10
Total Pages: 810
ISBN-13: 9780521598866
DOWNLOAD EBOOKThis is a graduate text on turbulent flows, an important topic in fluid dynamics. It is up-to-date, comprehensive, designed for teaching, and is based on a course taught by the author at Cornell University for a number of years. The book consists of two parts followed by a number of appendices. Part I provides a general introduction to turbulent flows, how they behave, how they can be described quantitatively, and the fundamental physical processes involved. Part II is concerned with different approaches for modelling or simulating turbulent flows. The necessary mathematical techniques are presented in the appendices. This book is primarily intended as a graduate level text in turbulent flows for engineering students, but it may also be valuable to students in applied mathematics, physics, oceanography and atmospheric sciences, as well as researchers and practising engineers.
Turbulence in Fluids
Author: Marcel Lesieur
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 520
ISBN-13: 9401090181
DOWNLOAD EBOOKTurbulence is a dangerous topic which is often at the origin of serious fights in the scientific meetings devoted to it since it represents extremely different points of view, all of which have in common their complexity, as well as an inability to solve the problem. It is even difficult to agree on what exactly is the problem to be solved. Extremely schematically, two opposing points of view have been ad vocated during these last twenty years: the first one is "statistical", and tries to model the evolution of averaged quantities of the flow. This com munity, which has followed the glorious trail of Taylor and Kolmogorov, believes in the phenomenology of cascades, and strongly disputes the possibility of any coherence or order associated to turbulence. On the other bank of the river stands the "coherence among chaos" community, which considers turbulence from a purely deterministic po int of view, by studying either the behaviour of dynamical systems, or the stability of flows in various situations. To this community are also associated the experimentalists who seek to identify coherent structures in shear flows.
Contribution à l'analyse de la turbulence homogène anisotrope
Author: Paulette Andrée Courseau
Publisher:
Published: 1974
Total Pages: 174
ISBN-13:
DOWNLOAD EBOOKENTRE LA TURBULENCE ISOTROPE ET LA TURBULENCE USUELLE IL EXISTE UN ECART CONSIDERABLE. POUR COMBLER CET ECART, ON ENTREPREND, A LA SUITE DE CRAYA UNE ANALYSE DE LA TURBULENCE HOMOGENE ASSOCIEE A UN CHAMP DE VITESSE MOYENNE A GRADIENTS CONSTANTS. ON SE PROPOSE DE SUIVRE L'EVOLUTION AU COURS DU TEMPS D'UNE TURBULENCE HOMOGENE, INITIALEMENT ISOTROPE, SOUMISE A L'ACTION D'UN CHAMP DE VITESSE MOYENNE A GRADIENTS CONSTANTS. L'INTERET DE CE MODELE EST DE PERMETTRE EN PARTICULIER UN APPORT D'ENERGIE A LA TURBULENCE PAR L'ECOULEMENT MOYEN
Transition, Turbulence and Combustion Modelling
Author: A. Hanifi
Publisher: Springer Science & Business Media
Published: 1999-10-31
Total Pages: 548
ISBN-13: 9780792359890
DOWNLOAD EBOOKThis single-volume work gives an introduction to the fields of transition, turbulence, and combustion modeling of compressible flows and provides the physical background for today’s modeling approaches in these fields. It presents basic equations and discusses fundamental aspects of hydrodynamical instability.
Turbulent Flows
Author: Jean Piquet
Publisher: Springer Science & Business Media
Published: 2013-04-17
Total Pages: 767
ISBN-13: 3662035596
DOWNLOAD EBOOKobtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.
