Numerical Studies Of Transitiion From Laminar To Turbulent Flow Over A Flat Plate
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Numerical Studies Of Transition From Laminar To Turbulent Flow Over A Flat Plate
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Author : Daniel F. De Santo
language : en
Publisher:
Release Date : 1963*
Numerical Studies Of Transition From Laminar To Turbulent Flow Over A Flat Plate written by Daniel F. De Santo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963* with Laminar flow categories.
A finite-difference technique is developed for analyzing the time-dependent two-dimensional flow of an incompressible viscous fluid over a semi-infinite flat plate. The complete (nonlinear) equations of motion for perturbed Blasius flow are numerically integrated with respect to time, and the propagation of disturbances in the boundary layer is determined. An analysis of the theoretical convergence and stability properties of the difference scheme is carried out. The method developed has been employed in two test calculations, in which slightly unstable oscillatory disturbances have been introduced at some upstream point. The numerical solutions exhibit many of the major theoretical and experimentally observed features associated with transition from laminar to turbulent boundary-layer flow. (Author).
Numerical Studies Of Transition From Laminar To Turbulent Flow Over A Flat Plate
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Author : D. F. De Santo
language : en
Publisher:
Release Date : 1961
Numerical Studies Of Transition From Laminar To Turbulent Flow Over A Flat Plate written by D. F. De Santo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Laminar flow categories.
A finite-difference technique is developed for analyzing the time-dependent two-dimensional flow of an incompressible viscous fluid over a semi-infinite flat plate. The complete (nonlinear) equations of motion for perturbed Blasius flow are numerically integrated with respect to time, and the propagation of disturbances in the boundary layer is determined. An analysis of the theoretical convergence and stability properties of the difference scheme is carried out. The method developed has been employed in two test calculations, in which slightly unstable oscillatory disturbances have been introduced at some upstream point. The numerical solutions exhibit many of the major theoretical and experimentally observed features associated with transition from laminar to turbulent boundary-layer flow. (Author).
Numerical Studies Of Transitiion From Laminar To Turbulent Flow Over A Flat Plate
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Author : D. F. De Santo
language : en
Publisher:
Release Date : 1961
Numerical Studies Of Transitiion From Laminar To Turbulent Flow Over A Flat Plate written by D. F. De Santo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Difference equations categories.
A finite-difference technique is developed for analyzing the time-dependent two-dimensional flow of an incompressible viscous fluid over a semi-infinite flat plate. The complete (nonlinear) equations of motion for perturbed Blasius flow are numerically integrated with respect to time, and the propagation of disturbances in the boundary layer is determined. An analysis of the theoretical convergence and stability properties of the difference scheme is carried out. The method developed has been employed in two test calculations, in which slightly unstable oscillatory disturbances have been introduced at some upstream point. The numerical solutions exhibit many of the major theoretical and experimentally observed features associated with transition from laminar to turbulent boundary-layer flow.
Numerical Studies On Laminar Turbulent Transition In Boundary Layers
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Author : Kyung Soo Yang
language : en
Publisher:
Release Date : 1988
Numerical Studies On Laminar Turbulent Transition In Boundary Layers written by Kyung Soo Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Recent Results In Laminar Turbulent Transition
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Author : Siegfried Wagner
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-05
Recent Results In Laminar Turbulent Transition written by Siegfried Wagner 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 2013-06-05 with Technology & Engineering categories.
The 24 papers presented at the international concluding colloquium of the German priority programme (DFG-Verbundschwerpunktprogramm) "Transition", held in April 2002 in Stuttgart. The unique and successful programme ran six years, starting April 1996, and was sponsored mainly by the Deutsche Forschungsgemeinschaft, DFG, but also by the Deutsches Zentrum für Luft-und Raumfahrt, DLR, the Physikalisch-Technische Bundesanstalt Braunschweig, PTB, and Airbus Deutschland. The papers summarise the results of the programme and cover transition mechanisms, transition prediction, transition control, natural transition and measurement techniques, transition - turbulence - separation, and visualisation issues. Three invited papers are devoted to mechanisms of turbulence production, to a general framework of stability, receptivity and control, and a forcing model for receptivity analysis. Almost every transition topic arising in subsonic and transonic flow is covered.
Attempts At Derivation Of Transition From Laminar Into Turbulent Flow Along A Flat Plate
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Author : H. F. Lduloff
language : en
Publisher:
Release Date : 1960
Attempts At Derivation Of Transition From Laminar Into Turbulent Flow Along A Flat Plate written by H. F. Lduloff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Differential equations categories.
Research has resulted in the derivation of a numerical scheme for the solution of the complete Navier-Stokes equations for two-dimensional time-dimensional time-independent viscous incompressible flow, as applied to the problem of the development of turbulence in the laminar boundary layer on a flat plate. The basic equations are reduced to a single quasi-linear vorticity-transport equation plus a Poisson equation; these are then written in finite-difference form. The solution of the difference system comprises a semi-implicit scheme for the quasi-linear equation together with an extrapolated line-Liebmann iteration method for the linear Poisson analog. Solutions for the two cases investigated (very low amplitude linear and very high amplitude nonlinear) are presented and discussed. The numerical scheme is demonstrated to be stable and capable of generating solutions which exhibit major theoretical and/or experimentally-observable features for each of the two cases. (Author).
Laminar Turbulent Transition
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Author : H.F. Fasel
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Laminar Turbulent Transition written by H.F. Fasel 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 2013-03-09 with Science categories.
The origins of turbulent flow and the transition from laminar to turbulent flow are among the most important unsolved problems of fluid mechanics and aerodynamics. Besides being a fundamental question of fluid mechanics, there are any number of applications for information regarding transition location and the details of the subsequent turbulent flow. The JUT AM Symposium on Laminar-Turbulent Transition, co-hosted by Arizona State University and the University of Arizona, was held in Sedona, Arizona. Although four previous JUT AM Symposia bear the same appellation (Stuttgart 1979, Novosibirsk 1984, Toulouse 1989, and Sendai 1994) the topics that were emphasized at each were different and reflect the evolving nature of our understanding of the transition process. The major contributions of Stuttgart 1979 centered on nonlinear behavior and later stages of transition in two-dimensional boundary layers. Stability of closed systems was also included with Taylor vortices in different geometries. The topics of Novosibirsk 1984 shifted to resonant wave interactions and secondary instabilities in boundary layers. Pipe- and channel-flow transition were discussed as model problems for the boundary layer. Investigations of free shear layers were presented and a heavy dose of supersonic papers appeared for the first time. The character of Toulouse 1989 was also different in that 3-D boundary layers, numerical simulations, streamwise vortices, and foundation papers on receptivity were presented. Sendai 1994 saw a number of papers on swept wings and 3-D boundary layers. Numerical simulations attacked a broader range of problems.
The Transition From Laminar To Turbulent Flow Over A Flat Plate Space Amplitied Numerical Solutions Of The Orr Sommerfield Equation
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Author : R. Jordinson
language : en
Publisher:
Release Date : 1968
The Transition From Laminar To Turbulent Flow Over A Flat Plate Space Amplitied Numerical Solutions Of The Orr Sommerfield Equation written by R. Jordinson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Fluid mechanics categories.
The Transition From Laminar To Turbulent Flow Over A Flat Plate
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Author : Ralph Jordinson
language : en
Publisher:
Release Date : 1968
The Transition From Laminar To Turbulent Flow Over A Flat Plate written by Ralph Jordinson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Physics Of Transitional Shear Flows
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Author : Andrey V. Boiko
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-09-15
Physics Of Transitional Shear Flows written by Andrey V. Boiko 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 2011-09-15 with Science categories.
Starting from fundamentals of classical stability theory, an overview is given of the transition phenomena in subsonic, wall-bounded shear flows. At first, the consideration focuses on elementary small-amplitude velocity perturbations of laminar shear layers, i.e. instability waves, in the simplest canonical configurations of a plane channel flow and a flat-plate boundary layer. Then the linear stability problem is expanded to include the effects of pressure gradients, flow curvature, boundary-layer separation, wall compliance, etc. related to applications. Beyond the amplification of instability waves is the non-modal growth of local stationary and non-stationary shear flow perturbations which are discussed as well. The volume continues with the key aspect of the transition process, that is, receptivity of convectively unstable shear layers to external perturbations, summarizing main paths of the excitation of laminar flow disturbances. The remainder of the book addresses the instability phenomena found at late stages of transition. These include secondary instabilities and nonlinear features of boundary-layer perturbations that lead to the final breakdown to turbulence. Thus, the reader is provided with a step-by-step approach that covers the milestones and recent advances in the laminar-turbulent transition. Special aspects of instability and transition are discussed through the book and are intended for research scientists, while the main target of the book is the student in the fundamentals of fluid mechanics. Computational guides, recommended exercises, and PowerPoint multimedia notes based on results of real scientific experiments supplement the monograph. These are especially helpful for the neophyte to obtain a solid foundation in hydrodynamic stability. To access the supplementary material go to extras.springer.com and type in the ISBN for this volume.