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Author : F. Boysan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (271 download)
Download or read book Numerical Prediction of Confined Vortex Flows written by F. Boysan and published by . This book was released on 1981* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. Boysan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (271 download)
Download or read book Numerical Prediction of Confined Turbulent Vortex Flows written by F. Boysan and published by . This book was released on 1981* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. Boysan
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (271 download)
Download or read book Numerical Prediction of Confined Turbulent Vortex Flows written by F. Boysan and published by . This book was released on 1981* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robin E. Textor
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Numerical Investigation of a Confined Vortex Problem written by Robin E. Textor and published by . This book was released on 1968 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. S. Lewellen
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Review of Confined Vortex Flows written by W. S. Lewellen and published by . This book was released on 1971 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J.T. Beale
Publisher : Springer Science & Business Media
ISBN 13 : 9401581371
Total Pages : 385 pages
Book Rating : 4.4/5 (15 download)
Download or read book Vortex Flows and Related Numerical Methods written by J.T. Beale and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many important phenomena in fluid motion are evident in vortex flow, i.e., flows in which vortical structures are significant in determining the whole flow. This book, which consists of lectures given at a NATO ARW held in Grenoble (France) in June 1992, provides an up-to-date account of current research in the study of these phenomena by means of numerical methods and mathematical modelling. Such methods include Eulerian methods (finite difference, spectral and wavelet methods) as well as Lagrangian methods (contour dynamics, vortex methods) and are used to study such topics as 2- or 3-dimensional turbulence, vorticity generation by solid bodies, shear layers and vortex sheets, and vortex reconnection. For researchers and graduate students in computational fluid dynamics, numerical analysis, and applied mathematics.
Author : L. G. Reyna
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (897 download)
Download or read book Numerical Prediction of Flow in Slender Vortices written by L. G. Reyna and published by . This book was released on 1987 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ionut Danaila
Publisher : Springer Nature
ISBN 13 : 3030681505
Total Pages : 206 pages
Book Rating : 4.0/5 (36 download)
Download or read book Vortex Ring Models written by Ionut Danaila and published by Springer Nature. This book was released on 2021-04-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a guide to understanding models of vortex rings, starting from classical ones (circular vortex filament, Hill and Norbury-Fraenkel inviscid models) to very recent models incorporating viscous effects and realistic shapes of the vortex core. Unconfined and confined viscous vortex rings are described by closed formulae for vorticity, stream function, translational velocity, energy, impulse and circulation. Models are applied to predict the formation number of optimal vortex rings and to describe two-phase vortex ring-like structures generated in internal combustion engines. The book provides a detailed presentation of analytical developments of models, backed up by illustrations and systematic comparisons with results of direct numerical simulations. The book is useful for graduate students in applied mathematics, engineering and physical sciences. It is a useful reference for researchers and practising engineers interested in modelling flows with vortex rings.
Author : Austin Alexander Tomlinson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)
Download or read book On the Effect of Boundaries on Confined Vortex Matter Systems written by Austin Alexander Tomlinson and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we investigate the effects of boundaries on confined superconducting vortex matter systems. We are primarily interested in understanding the properties of the so-called `row-drop' transition in a density-driven, confined flow channel, reported by J. Watkins. We present numerical and analytic calculations that reveal chaos, structural progression, and novel energetic behaviour. Firstly, we study a cylindrical geometry of confined vortices. Vortices align to form a regular structure that wraps around the cylinder in a commensurate fashion. We find a set of analytic equations and solve them exactly to find all possible lattices. Combining numerical results with energetic arguments enables us to construct the phase diagram of structural ground states for arbitrary circumference and density. Following this, we generalise the results from the cylinder to a numerical study of a conical geometry of flowing vortices. We are able to accurately predict the lattice structures given the geometry of the cone and the density of vortices on its surface. By developing the theory of lattice structures on the cylinder, we propose a way of generating a single flowing lattice on the cone, subject to a source and sink reservoir of vortices at either end. Numerical simulations confirm this proposition. Finally, we simulate vortices confined to a narrow, constricted channel constructed out of static, pinned vortices. By carefully controlling system parameters, we observe the emergence of chaotic behaviour centred at the aperture of the constriction. We present results diagrammatically and analyse them using established techniques to extract Lyapunov exponents from time series data.
Author : Cedric Taylor
Publisher :
ISBN 13 :
Total Pages : 1304 pages
Book Rating : 4.F/5 ( download)
Download or read book Numerical Methods in Laminar and Turbulent Flow written by Cedric Taylor and published by . This book was released on 1981 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 878 pages
Book Rating : 4.0/5 ( download)
Download or read book Numerical Methods in Laminar and Turbulent Flow written by and published by . This book was released on 1995 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Beverley Green
Publisher : Springer Science & Business Media
ISBN 13 : 9780792333760
Total Pages : 916 pages
Book Rating : 4.3/5 (337 download)
Download or read book Fluid Vortices written by Beverley Green and published by Springer Science & Business Media. This book was released on 1995-03-31 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid Vortices is a comprehensive, up-to-date, research-level overview covering all salient flows in which fluid vortices play a significant role. The various chapters have been written by specialists from North America, Europe and Asia, making for unsurpassed depth and breadth of coverage. Topics addressed include fundamental vortex flows (mixing layer vortices, vortex rings, wake vortices, vortex stability, etc.), industrial and environmental vortex flows (aero-propulsion system vortices, vortex-structure interaction, atmospheric vortices, computational methods with vortices, etc.), and multiphase vortex flows (free-surface effects, vortex cavitation, and bubble and particle interactions with vortices). The book can also be recommended as an advanced graduate-level supplementary textbook. The first nine chapters of the book are suitable for a one-term course; chapters 10--19 form the basis for a second one-term course.
Author : Lu Ting
Publisher : Springer Science & Business Media
ISBN 13 : 3540685820
Total Pages : 508 pages
Book Rating : 4.5/5 (46 download)
Download or read book Vortex Dominated Flows written by Lu Ting and published by Springer Science & Business Media. This book was released on 2007-07-05 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides in-depth analyses of vortex dominated flows via matched and multiscale asymptotics, and demonstrates how insight gained through these analyses can be exploited in the construction of robust, efficient, and accurate numerical techniques. The book explores the dynamics of slender vortex filaments in detail, including fundamental derivations, compressible core structure, weakly non-linear limit regimes, and associated numerical methods. Similarly, the volume covers asymptotic analysis and computational techniques for weakly compressible flows involving vortex-generated sound and thermoacoustics. The book is addressed to both graduate students and researchers.
Author :
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.E/5 ( download)
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Paper written by and published by . This book was released on 1985 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Denis Blackmore
Publisher : World Scientific
ISBN 13 : 9814480452
Total Pages : 299 pages
Book Rating : 4.8/5 (144 download)
Download or read book Vortex Dominated Flows: A Volume Celebrating Lu Ting's 80th Birthday written by Denis Blackmore and published by World Scientific. This book was released on 2005-08-08 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honoring the contributions of one of the field's leading experts, Lu Ting, this indispensable volume contains important new results at the cutting edge of research. A wide variety of significant new analytical and numerical results in critical areas are presented, including point vortex dynamics, superconductor vortices, cavity flows, vortex breakdown, shock/vortex interaction, wake flows, magneto-hydrodynamics, rotary wake flows, and hypersonic vortex phenomena.The book will be invaluable for those interested in the state of the art of vortex dominated flows, both from a theoretical and applied perspective.Professor Lu Ting and Joe Keller have worked together for over 40 years. In their first joint work entitled “Periodic vibrations of systems governed by nonlinear partial differential equations”, perturbation analysis and bifurcation theory were used to determine the frequencies and modes of vibration of various physical systems. The novelty was the application to partial differential equations of methods which, previously, had been used almost exclusively on ordinary differential equations. Professsor Lu Ting is an expert in both fluid dynamics and the use of matched asymptotic expansions. His physical insight into fluid flows has led the way to finding the appropriate mathematical simplications used in the solutions to many difficult flow problems.
Author : Kristopher C. Pierson
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (884 download)
Download or read book Vorticity Confinement Applied to Induced Drag Prediction and the Simulation of Turbulent Wingtip Vortices from Fixed and Rotating Wings written by Kristopher C. Pierson and published by . This book was released on 2014 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve accuracy of CFD simulations by combating numerical viscosity, the vorticity confinement (VC) approach was applied to tip vortices shed by stationary wings for the prediction of induced drag by far-field integration in Trefftz plane as well as the simulation of tip vortex evolution. Vorticity confinement schemes are first evaluated and compared using 2D Euler simulation of a Taylor vortex. The effect of numerical dissipation is shown to cause the vortex to spread and decay without the presence of physical dissipative terms; VC counteracts this effect and maintains the vortex strength. For 3D simulations, the coefficient of confinement was determined for various flight parameters. Dependence of vorticity confinement parameter on the flight Mach number and the angle of attack was evaluated. The aerodynamic drag results with VC are much closer to analytic lifting line theory compared to integration over surface of wing. To apply VC to viscous and turbulent flows, it is shown that in many cases VC does not affect the physical rate of dissipation of line vortices for temporal and viscous scales relevant to wingtip vortex simulations. VC was applied to the simulation turbulent wingtip vortices originating from fixed and rotating wings. The six Reynolds stress turbulence model combined with VC most accurately matched experimental results of tip vortex evolution.
