Download or read book On the Three dimensional Instability of Laminar Boundary Layers on Concave Walls written by Henry Görtler and published by . This book was released on 1954 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study is made of the stability of laminar boundary-layer profiles on slightly curved walls relative to small disturbances that result from vortices whose axes are parallel to the principal direction of flow. The result is an eigenvalue problem by which, for a given undisturbed flow at a prescribed wall, the amplification or decay is computed for each Reynolds number and each vortex thickness. For neutral disturbances (zero amplification) a critical Reynolds number is determined for each vortex distribution. The numerical calculation produces amplified disturbances on concave walls only.
Download or read book Instability of Laminar Boundary Layers on Concave Walls Against Certain Three dimensional Disturbances written by H. Gortler and published by . This book was released on 1941 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stability of Three dimensional Compressible Boundary Layers written by Eli Reshotko and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study of the Laminar turbulent Transition of a Concave Wall in a Parallel Flow written by H. Bippes and published by . This book was released on 1978 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Three Dimensional Vortex Instability written by F. X. Wortmann and published by . This book was released on 1959 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers the development and construction of a laminar water tunnel designed for the investigation of a three-dimensional vortex instability of the laminar boundary layer on the concave wall. Both the assignment and the tellurium method have brought up problems for the solution of which entirely new approaches had to be found. Apart from the solution of a large variety of individual problems a rigid, porous, corrosion-resistant wall surface was developed for boundary layer suction.
Download or read book Nonparallel stability of three dimensional compressible boundary layers written by Nabil M. El-Hady and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation in Systems Far from Equilibrium written by Jose E. Wesfreid and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macroscopic physics provides us with a great variety of pattern-forming systems displaying propagation phenomena, from reactive fronts in combustion, to wavy structures in convection and to shear flow instabilities in hydrodynamics. These proceedings record progress in this rapidly expanding field. The contributions have the following major themes: - The problems of velocity selection and front morphology of propagating interfaces in multiphase media, with emphasis on recent theoretical and experimental results on dendritic crystal growth, Saffman-Taylor fingering, directional solidification and chemical waves. - The "unfolding" of large-scale, low-frequency behavior in weakly confined homogeneous systems driven far from equilibrium, and more specifically, the envelope approach to the mathematical description of textures in different cases: steady cells, propagating waves, structural defects, and phase instabilities. - The implications of the presence of global downstream transport in open flows for the nature, convective or absolute, of shear flow instabilities, with applications to real boundary layer flows or shear layers, as reported in contributions covering experimental situations of fundamental and/or engineering interest.
Download or read book NASA Technical Note written by and published by . This book was released on 1970 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viscous Drag Reduction in Boundary Layers written by and published by AIAA. This book was released on 1990 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1947 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report of the National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1946 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.
Download or read book Secondary Instabilities of G rtler Vortices in High Speed Boundary Layers written by Jie Ren and published by Springer. This book was released on 2017-10-27 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis first reveals the mechanism of Görtler instabilities and then demonstrates how transitions at hypersonic flows can be effectively controlled (either promoted or suppressed) with Görtler or Klebanoff modes. It focuses on understanding and controlling flow transitions from mild laminar to fully turbulent flows at high speeds—aspects that have become crucial at the dawn of an incredible era, in which hypersonic vehicles are becoming available. Once this occurs, it will be possible to travel from Beijing to Los Angeles within just 2 hours, and we will all live in a genuinely global village—and not just virtually, but physically. Görtler instabilities have often been used to promote flow transition in hypersonic vehicles. However, how Görtler instabilities are excited and how they evolve in hypersonic flows are questions that have yet to be answered.
Download or read book NASA Reference Publication written by and published by . This book was released on 1977 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computation of Three Dimensional Complex Flows written by Michel Deville and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Der Sammelband enthält Beiträge einer Tagung über die Simulation von dreidimensionalen Flüssigkeiten. Sie geben einen Überblick über den Stand des Wissens auf dem Gebiet der numerischen Simulation der Turbulenz, angewandt auf eine weite Spanne von Problemen wie Aerodynamik, Nicht-Newtonsche Flüssigkeiten, Konvektion.This volume contains the material presented at the IMACS-COST Conference on CFD, Three-Dimensional Complex Flows, held in Lausanne (Switzerland), September 13 - 15, 1995. It gives an overview of the current state of numerical simulation and turbulence modelling applied to a wide range of fluid flow problems such as an example aerodynamics, non-Newtonian flows, transition, thermal convection.
Download or read book Wartime Reports written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1945 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Stability of Three Dimensional Boundary Layers written by and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
