Research On Supersonic Turbulent Separated And Reattached Flows
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| Author | : Seymour M. Bogdonoff |
| Publisher | : |
| Total Pages | : 94 |
| Release | : 1975 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : |
Download Research on Supersonic Turbulent Separated and Reattached Flows Book in PDF, Epub and Kindle
Basic research programs are reported with fundamental applications to supersonic flight. The experimental studies made use of the unique capabilities of the high Reynolds number Mach 3 facility. The experimental programs concentrated on phenomena associated with incipient separation and separation of turbulent boundary layers over a large Reynolds number range. The reattachment phenomena of a shear layer was also studied in great depth.
| Author | : S. M. Bogdonoff |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1975 |
| Genre | : |
| ISBN | : |
Download Research on Supersonic Turbulent Separated and Reattached Flows Book in PDF, Epub and Kindle
Basic research programs are reported with fundamental applications to supersonic flight. The experimental studies made use of the unique capabilities of the high Reynolds number Mach 3 facility. The experimental programs concentrated on phenomena associated with incipient separation and separation of turbulent boundary layers over a large Reynolds number range. The reattachment phenomena of a shear layer was also studied in great depth.
| Author | : Dean R. Chapman |
| Publisher | : |
| Total Pages | : 24 |
| Release | : 1956 |
| Genre | : Aerodynamics |
| ISBN | : |
Download Preliminary Report on a Study of Separated Flows in Supersonic and Subsonic Streams Book in PDF, Epub and Kindle
Some results are described of fundamental research conducted on various flow separation phenomena in two-dimensional streams. Experimental and theoretical results are described for the pressure rise across a reattachment region, and for the Reynolds number dependence of the pressure rise to a separation point. Observations are made throughout of the location of transition relative to reattachment and to separation, since this relative location turned out to be the dominant variable investigated.
| Author | : Paul K. Chang |
| Publisher | : Elsevier |
| Total Pages | : 800 |
| Release | : 2014-06-28 |
| Genre | : Technology & Engineering |
| ISBN | : 1483181286 |
Download Separation of Flow Book in PDF, Epub and Kindle
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.
| Author | : Robert H. Korkegi |
| Publisher | : |
| Total Pages | : 60 |
| Release | : 1975 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : |
Download Viscous Flow Interaction Studies Book in PDF, Epub and Kindle
The research was designed to gain understanding of the flow of air at high speeds over the components of lifting supersonic and hypersonic vehicles--wings, flaps, fins, inlets--and their interactions with respect to heating, surface friction, pressure, and aerodynamic forces. The objective was to help predict (a) flows on complex aerospace vehicle configurations in high-speed flight and (b) the location of areas of high heating. The research covers the areas of laminar and turbulent boundary layers, boundary layer transition, boundary layer separation, base flows and wakes, low density flows, three-dimensional interactions, viscous flow problems, and some flow measurement techniques.
| Author | : G. J. Thomke |
| Publisher | : |
| Total Pages | : 180 |
| Release | : 1964 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : |
Download Separation and Reattachment of Supersonic Turbulent Boundary Layer Behind Down Stream Facing Steps and Over Cavities Book in PDF, Epub and Kindle
Surface pressure measurements were obtained for the flow regimes created when a turbulent boundary layer in supersonic flow separates over the classical downstream-facing step and over a cavity. The experiments were conducted in the Mach number range 2.0 to 4.0 on a model having a ducted, one-foot diameter, axisymmetric body. The model provided step heights of 0.250, 1.020, and 1.675 inches, cavity lengths of 0.837 and 1.675 inches, and a cavity depth of 1.675 inches. The recompression shoulder of the cavity had either a square or a rounded shape. In general, the pressure rise at reattachment is found to be in good agreement with Korst's theory. The shape and scale of the reattachment pressure distribution are influenced considerably by Mach number. Reattachment occurs at a point where the pressure rise is about 50% complete. A point of flow reversal is found to be located upstream of the reattachment point. (Author).
| Author | : United States. National Aeronautics and Space Administration. Ad Hoc Committee on Subsonic and Supersonic Aeronautics |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1968 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : |
Download Some Fluid Mechanical Problems Related to Subsonic and Supersonic Aircraft Book in PDF, Epub and Kindle
| Author | : Gerald Clyde Paynter |
| Publisher | : |
| Total Pages | : 264 |
| Release | : 1965 |
| Genre | : Boundary layer |
| ISBN | : |
Download On the Prediction of Separation and Reattachment Flow Characteristics for Two Dimensional Supersonic Turbulent Boundary Layers Book in PDF, Epub and Kindle
| Author | : Wilbur L. Hankey |
| Publisher | : |
| Total Pages | : 20 |
| Release | : 1975 |
| Genre | : Aerodynamics, Hypersonic |
| ISBN | : |
Download Separated Flow Studies Book in PDF, Epub and Kindle
This report reviews the progress over the last decade on separated flows conducted at these laboratories. Experimental investigations conducted in the hypersonic wind tunnels is discussed. Advancements are summarized in the theoretical area which cover the development of interacting boundary layers to the numerical computation of the complete Navier-Stokes equations.
| Author | : V. Zakkay |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 1975 |
| Genre | : Aerodynamic load |
| ISBN | : |
Download Two-dimensional Turbulent Boundary Layer Separation on a Flat Plate with Ramp at Freestream Mach Numbers of 3.7 and 6.3 in Supersonic and Hypersonic Flow Book in PDF, Epub and Kindle
This investigation describes surface pressure distribution, heat transfer, and turbulent flow separation and reattachment on a flat plate with variable ramp angle at Mach numbers averaging 3.66 and 6.30. The freestream Reynold's number varied from 3.33 to 8.34 million per foot for the former case and from 5.243 million to 14.6 million per foot for the latter case. Ramp angle was varied from 0 to 35 degrees for these experiments. Stagnation temperatures averaged 849 degrees Rankine, with wall temperature assumed constant at 535 degrees Rankine for all tests. The knowledge of effective wedge angles and freestream conditions makes it possible to determine shocks so that conditions can be evaluated at all positions on the model.
