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Numerical Studies Of Unsteady Laminar Boundary Layer Separation Over Impulsively Started Moving Objects
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Book Synopsis Numerical Studies of Unsteady Laminar Boundary-layer Separation Over Impulsively-started Moving Objects by : Tzuyin Wu
Download or read book Numerical Studies of Unsteady Laminar Boundary-layer Separation Over Impulsively-started Moving Objects written by Tzuyin Wu and published by . This book was released on 1991 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Numerical Study of Unsteady Laminar Boundary Layer Separation by : Laura Lynn Pauley
Download or read book A Numerical Study of Unsteady Laminar Boundary Layer Separation written by Laura Lynn Pauley and published by . This book was released on 1988 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unsteady, incompressible Navier-Stokes equations were solved using a fractional timestep method. Using this technique, the separation of a laminar boundary layer under the influence of an external adverse pressure gradient was.
Book Synopsis Some Important Problem in Unsteady Boundary Layers Including Separation. I. Nature of Singularity on Oscillating Airfoils by : T. Cebeci
Download or read book Some Important Problem in Unsteady Boundary Layers Including Separation. I. Nature of Singularity on Oscillating Airfoils written by T. Cebeci and published by . This book was released on 1984 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results are presented for the analysis of unsteady laminar boundary layers on oscillating airfoils. An examination of the evolution of the boundary layer near the nose of an oscillating airfoil has revealed that, when the reduced frequency is of the same order as in experiments on dynamic stall, the unsteady boundary layer ceases to behave in a smooth manner just downstream of separation and before one cycle is completed. As for the case of the implusively started circular cylinder, the irregular behavior signals the onset of a singularity in the solution of the boundary layer equations. Numerical results for the method are compared with the numerical results of van Dommelen and Shen for the impulsively started circular cylinder, the irregular behavior signals the onset of a singularity in the solution of the boundary layer equations. Numerical results for the method are compared with the numerical results of van Dommelen and Shen for the impulsively started circular cylinder.
Book Synopsis The Response of the Laminar Boundary Layer to Impulsive Motions by : Martin Lewis Rosenzweig
Download or read book The Response of the Laminar Boundary Layer to Impulsive Motions written by Martin Lewis Rosenzweig and published by . This book was released on 1959 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Boundary Layer Control for Unsteady Separation Using Lagrangian Method by : Kazutoshi Tominaga
Download or read book A Study of Boundary Layer Control for Unsteady Separation Using Lagrangian Method written by Kazutoshi Tominaga and published by . This book was released on 1992 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722455040 Total Pages :50 pages Book Rating :4.4/5 (55 download)
Book Synopsis On the Lagrangian Description of Unsteady Boundary Layer Separation. Part 1 by : National Aeronautics and Space Administration (NASA)
Download or read book On the Lagrangian Description of Unsteady Boundary Layer Separation. Part 1 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-09 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although unsteady, high-Reynolds number, laminar boundary layers have conventionally been studied in terms of Eulerian coordinates, a Lagrangian approach may have significant analytical and computational advantages. In Lagrangian coordinates the classical boundary layer equations decouple into a momentum equation for the motion parallel to the boundary, and a hyperbolic continuity equation (essentially a conserved Jacobian) for the motion normal to the boundary. The momentum equations, plus the energy equation if the flow is compressible, can be solved independently of the continuity equation. Unsteady separation occurs when the continuity equation becomes singular as a result of touching characteristics, the condition for which can be expressed in terms of the solution of the momentum equations. The solutions to the momentum and energy equations remain regular. Asymptotic structures for a number of unsteady 3-D separating flows follow and depend on the symmetry properties of the flow. In the absence of any symmetry, the singularity structure just prior to separation is found to be quasi 2-D with a displacement thickness in the form of a crescent shaped ridge. Physically the singularities can be understood in terms of the behavior of a fluid element inside the boundary layer which contracts in a direction parallel to the boundary and expands normal to it, thus forcing the fluid above it to be ejected from the boundary layer. Vandommelen, Leon L. and Cowley, Stephen J. Glenn Research Center NASA-SAA-C-99066-G; RTOP 505-62-21...
Book Synopsis Unsteady Incompressible Boundary-layer Separation Over a Two Dimensional Impulsively Started Elliptic Cylinder Calculated by Lagrangian Method by : Tzuyin Wu
Download or read book Unsteady Incompressible Boundary-layer Separation Over a Two Dimensional Impulsively Started Elliptic Cylinder Calculated by Lagrangian Method written by Tzuyin Wu and published by . This book was released on 1985 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On the Lagrangian Description of Unsteady Boundary Layer Separation by : Leon L. Van Dommelen
Download or read book On the Lagrangian Description of Unsteady Boundary Layer Separation written by Leon L. Van Dommelen and published by . This book was released on 1989 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boundary-Layer Theory by : Hermann Schlichting (Deceased)
Download or read book Boundary-Layer Theory written by Hermann Schlichting (Deceased) and published by Springer. This book was released on 2016-10-04 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.
Book Synopsis On the Separation of the Unsteady Laminar Boundary Layer by : R. A. Hartunian
Download or read book On the Separation of the Unsteady Laminar Boundary Layer written by R. A. Hartunian and published by . This book was released on with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation of Unsteady Boundary-layer Separation by : Demetri P. Telionis
Download or read book Numerical Investigation of Unsteady Boundary-layer Separation written by Demetri P. Telionis and published by . This book was released on 1972 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been previously indicated both theoretically and experimentally that for steady flow over moving boundaries, the vanishing of skin friction does not mean separation and that separation occurs at a station where the generalized Moore-Rott-Sears (MRS) criterion is satisfied. The authors have earlier indicated numerically that the Goldstein-type separation-singularity appears at the point where the MRS criterion is satisfied. In the present paper and in accordance with the theoretical work of Sears and one of the authors, this idea is extended to unsteady flows. A Goldstein-type of a traveling singularity is discovered and interpreted as 'unsteady boundary-layer separation.' The features of the flow in the neighborhood of this singularity are investigated. (Author).
Book Synopsis The Unsteady Laminar Boundary Layer on an Axisymmetric Body Subject to Small Amplitude Fluctuations in the Free-stream Velocity by : Institute for Computer Applications in Science and Engineering
Download or read book The Unsteady Laminar Boundary Layer on an Axisymmetric Body Subject to Small Amplitude Fluctuations in the Free-stream Velocity written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Herrmann Schlichting Publisher :Springer Science & Business Media ISBN 13 :9783540662709 Total Pages :840 pages Book Rating :4.6/5 (627 download)
Book Synopsis Boundary-Layer Theory by : Herrmann Schlichting
Download or read book Boundary-Layer Theory written by Herrmann Schlichting and published by Springer Science & Business Media. This book was released on 2003-05-20 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of the almost legendary textbook by Schlichting completely revised by Klaus Gersten is now available. This book presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with emphasis on the flow past bodies (e.g. aircraft aerodynamics). It contains the latest knowledge of the subject based on a thorough review of the literature over the past 15 years. Yet again, it will be an indispensable source of inexhaustible information for students of fluid mechanics and engineers alike.
Book Synopsis Boundary-Layer Separation by : Frank T. Smith
Download or read book Boundary-Layer Separation written by Frank T. Smith and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IUTAM Symposium on Boundary-Layer Separation, suggested by the UK National Committee of Theoretical and Applied Mechanics and supported by the International Union of Theoretical and Applied Mechanics, was held at University College London on August 26-28, 1986. The proposed theme and scope of the Symposium were designed to help to bring about the necessary interaction between experimentalists, computationalists and theoreticians for the furthering of understanding in this challenging subject. The talks and discussions were aimed at representing the very wide range and application of separating-flow phenomena, which often substantially affect the whole of fluid dynamics at medium to large Reynolds numbers, covering in particular both laminar and turbulent flow, steady or unsteady, two- or three-dimensional, small or large-scale, incompressible or compressible, external or internal, from the experimental, computational and theoretical standpoints. It was intended that about 80 scientists would participate in the Symposium, with about 25 talks being delivered, to which poster sessions with 8 contributions were added subsequently. All the speakers and poster presenters were selected by the scientific committee, although two late replacements of speakers were required. Fruitful discussions, well led by the session chairmen, took place formally after each talk and after the poster sessions and informally on other occasions including the social events. The present proceedings of the Symposium appear to reflect much of the current state of experimental, computational and theoretical work and progress in boundary-layer separation. We hope that they provide also ideas, questions and stimulation, in addition to major recent developments.
Book Synopsis Unsteady Laminar Boundary-layer Calculations on Oscillating Configurations Including Backflow. Part 1: Flat Plate, Oscillating in Its Own Plane by :
Download or read book Unsteady Laminar Boundary-layer Calculations on Oscillating Configurations Including Backflow. Part 1: Flat Plate, Oscillating in Its Own Plane written by and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laminar Boundary-layer Separation Induced by Flares on Cylinders at Zero Angle of Attack by : Donald M. Kuehn
Download or read book Laminar Boundary-layer Separation Induced by Flares on Cylinders at Zero Angle of Attack written by Donald M. Kuehn and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laminar boundary-layer separation induced by a flare on a cylindrical body of revolution has been experimentally investigated in the Mach number range of 2.0 to 5.5. The Reynolds number range (based on boundary-layer thickness) was 1x103 to 30x103. Geometric variables were nose shape, cylinder length, and flare angle. Test variables were Mach number, Reynolds number, and heat transfer. The purpose of the investigation was to determine which of these variables most influence laminar boundary-layer separation on a cylinder-flare configuration and to provide data that will aid in the prediction of laminar separation.
Book Synopsis Separation of Flow by : Paul K. Chang
Download or read book Separation of Flow written by Paul K. Chang and published by Elsevier. This book was released on 2014-06-28 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interdisciplinary and Advanced Topics in Science and Engineering, Volume 3: Separation of Flow presents the problem of the separation of fluid flow. This book provides information covering the fields of basic physical processes, analyses, and experiments concerning flow separation. Organized into 12 chapters, this volume begins with an overview of the flow separation on the body surface as discusses in various classical examples. This text then examines the analytical and experimental results of the laminar boundary layer of steady, two-dimensional flows in the subsonic speed range. Other chapters consider the study of flow separation on the two-dimensional body, flow separation on three-dimensional body shape and particularly on bodies of revolution. This book discusses as well the analytical solutions of the unsteady flow separation. The final chapter deals with the purpose of separation flow control to raise efficiency or to enhance the performance of vehicles and fluid machineries involving various engineering applications. This book is a valuable resource for engineers.
