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Author : Louis G. Kaufman
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (11 download)
Download or read book An Investigation of Flow Separation and Aerodynamic Controls at Hypersonic Speeds written by Louis G. Kaufman and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas Eugene Abbott
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (91 download)
Download or read book Investigation of Hypersonic Flow Separation and Its Effects on Aerodynamic Control Characteristics written by Douglas Eugene Abbott and published by . This book was released on 1962 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the present study is to investigate laminar separation at hypersonic speeds, especially as it affects aerodynamic control characteristcis. Theoretical methods for use with computing machines hae been developed for calculating the pressure distribution due to laminar separation of the free-interaction type upstream and downstream of the separation point. The theories account for effects of Mach number, Reynolds number, wall heating and cooling, and specific heat ratio and show significant effects of all these parameters on separation. An experimental investigation was made of flare-cylinder combination with extensive separation at Mach numbers 4 and 6, Reynolds numbers of 10(3) to 10(4), and for adiabatic and cooled walls. In general, the separation was not of the free-interaction type so that modifications of the theory are required to adapt it to this type of separation. Methods for making such modifications are discussed together with methods for computing hypersonic control characteristics for various cases of seaparated flows.
Author :
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (227 download)
Download or read book AN INVESTIGATION OF HYPERSONIC FLOW SEPARATION AND CONTROL CHARACTERISTICS. written by and published by . This book was released on 1965 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypersonic flow separation and its effects on control characteristics were investigated analytically and experimentally. Included are conclusions drawn from extensive test data for hypersonic flows over 'basic' geometries and over 'typical' flight configurations with aerodynamic controls. The basic flow geometries discussed include: separation on flat plates ahead of ramps (flaps); flows over sharp expansion corners; 'breakaway' separation; and fin plate interactions. Force data and limited pressure and heating rate distributions are presented for the flight configurations for various trailing edge flap settings. As a supplement to this work, available sources of pertinent hypersonic controls data are tabulated.
Author : Stavros A. Hartofilis
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)
Download or read book Pressure Measurement at Mach 19 for a Winged Re-entry Configuration written by Stavros A. Hartofilis and published by . This book was released on 1963 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Z. Popinski
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.3/5 (91 download)
Download or read book Development Design Methods for Predicting Hypersonic Aerodynamic Control Characteristics written by Z. Popinski and published by . This book was released on 1966 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design methods are developed for determining aerodynamic control effectiveness at hypersonic speeds along body surface. Pressure and heat transfer distributions in separated regions due to aerodynamic control deflection are described in terms of characteristic magnitudes and distance parameters by semiempirical correlations. The forms of these correlations are inferred from theory and experimental data. Using these correlations, pressure distribution in the separated region over a deflected flap is approximated and expressions for force and moment coefficients are determined. General charts are developed which present separation and flow parameters over a range of flight conditions for a typical hypersonic vehicle. Flow separation over a fin-plate configuration is presented using experimental measurements. Also, characteristics of flow over a flat plate, flat delta wing, and delta with dihedral are analyzed using visual flow records and pressure measurements from the point of view of two-dimensional flow. Applicability of the correlation expressions to separated flow on various configurations is discussed and calculated aerodynamic coefficients are compared with measured values.
Author : Robert H. Korkegi
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)
Download or read book Viscous Flow Interaction Studies written by Robert H. Korkegi and published by . This book was released on 1975 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : United States. National Aeronautics and Space Administration. Ad Hoc Committee on Subsonic and Supersonic Aeronautics
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (44 download)
Download or read book Some Fluid Mechanical Problems Related to Subsonic and Supersonic Aircraft written by United States. National Aeronautics and Space Administration. Ad Hoc Committee on Subsonic and Supersonic Aeronautics and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (227 download)
Download or read book A REVIEW OF HYPERSONIC FLOW SEPARATION AND CONTROL CHARACTERISTICS. written by and published by . This book was released on 1962 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of high-speed flow separation and a review of available information pertaining to the effectiveness of aerodynamic controls for hypersonic vehicles are presented. Emphasis is on the problems associated with applying the existing information, which relates primarily to the low- supersonic speed range, to hypersonic flow situations. Sufficient detail is presented to allow this report to serve as a self-contained, introductory work on separation phenomena; available sources of specific types of control data are tabulated for ready access.
Author : G. G. Chernyi
Publisher : Academic Press
ISBN 13 : 1483271684
Total Pages : 277 pages
Book Rating : 4.4/5 (832 download)
Download or read book Introduction to Hypersonic Flow written by G. G. Chernyi and published by Academic Press. This book was released on 2013-10-22 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Hypersonic Flow has been made available to the English speaking reader because of its usefulness for those individuals desirous of obtaining an introduction to the subject. Written by an internationally acknowledged expert in the field of hypersonic flow, the book makes available heretofore unpublished Soviet work, as well as published work little known outside the Soviet Union. The author has however made every effort to include, where appropriate. Western references for the work he discusses. Starting with a general introductory chapter on hypersonic aerodynamics and aerodynamic problems, the remainder of the book concentrates on the inviscid, perfect fluid aspects of hypersonic flow, with emphasis on the fundamental concepts and rational methods of calculation. The book is directed to students of aerodynamics and gas dynamics, as well as to scientists and engineers interested in problems of hypersonic flight. The level of approach is such that it should prove particularly useful as an undergraduate and introductory graduate text.
Author : Larry L. Lynes
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Inhibition of Flow Separation at High Speed written by Larry L. Lynes and published by . This book was released on 1969 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The method of integral relations was successfully applied to compressible nonadiabatic turbulent boundary layers on a flat plate. The theory is designed to accept any desired eddy-viscosity model. A particular eddy-viscosity model was incorporated into the method, and the equations were programmed for application to a flat plate with no pressure gradient. The variations of the skin-friction coefficient with Reynolds number, Mach number, and temperature ratio were calculated using this program, and the results are in good accord with similar results calculated by the Spalding-Chi method and the Rubesin T' method. An analysis was made to predict to what extent turbulent separation of the free-interaction type can be inhibited by means of surface cooling. It was observed experimentally that free-interaction is applicable to separated turbulent boundary layers up to the separation point or beyond. The free-interaction model used in the analysis is based on adding the boundary-layer displacement thickness to the actual body dimensions in calculating the induced pressures. The critical temperature ratios calculated on this basis are generally greater than adiabatic wall temperature except in the supersonic range up to a Mach number approaching 3, where moderate cooling is required to inhibit separation.
Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Transition Fixing for Hypersonic Flow written by and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Grumman Aircraft Engineering Corporation
Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (119 download)
Download or read book A Review of Hypersonic Flow Separation and Control Characteristics written by Grumman Aircraft Engineering Corporation and published by . This book was released on 1962 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of high-speed flow separation and a review of available information pertaining to the effectiveness of aerodynamic controls for hypersonic vehicles are presented. Emphasis is on the problems associated with applying the existing information, which relates primarily to the low- supersonic speed range, to hypersonic flow situations. Sufficient detail is presented to allow this report to serve as a self-contained, introductory work on separation phenomena; available sources of specific types of control data are tabulated for ready access.
Author : Wilbur L. Hankey
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)
Download or read book Separated Flow Studies written by Wilbur L. Hankey and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Paul K. Chang
Publisher : Hemisphere Pub
ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.F/5 ( download)
Download or read book Control of Flow Separation written by Paul K. Chang and published by Hemisphere Pub. This book was released on 1976 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dean R. Chapman
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (126 download)
Download or read book Preliminary Report on a Study of Separated Flows in Supersonic and Subsonic Streams written by Dean R. Chapman and published by . This book was released on 1956 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Allen H. Whitehead (Jr.)
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book Flow-field and Drag Characteristics of Several Boundary-layer Tripping Elements in Hypersonic Flow written by Allen H. Whitehead (Jr.) and published by . This book was released on 1969 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow field and drag characteristics of several laminar boundary layer tripping element in hypersonic flow.
Author :
Publisher :
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1974 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
