Boundary Layer Transition Correlation On A Slender Cone In Wind Tunnels And Flight For Indications Of Flow Quality
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Boundary Layer Transition Correlation On A Slender Cone In Wind Tunnels And Flight For Indications Of Flow Quality
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Author : N. Sam Dougherty
language : en
Publisher:
Release Date : 1982
Boundary Layer Transition Correlation On A Slender Cone In Wind Tunnels And Flight For Indications Of Flow Quality written by N. Sam Dougherty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Boundary layer categories.
Boundary-layer transition location measurements were made on a 10-deg sharp cone in 23 wind tunnels in the United States and Europe and in flight. The data were acquired at subsonic, transonic, and supersonic Mach numbers over a range of unit Reynolds numbers in an effort to obtain an improved understanding of the effect of wind tunnel flow quality on transition location. The data indicate that the transition mechanism in both wind tunnels and flight is associated with the formation of Tollmien-Schlichting waves in the laminar boundary layer. However, the location of the end of transition was found to be primarily a function of the noise under the laminar boundary of the cone surface and, within + or - 20 percent, independent of Mach number and unit Reynolds number. (Author).
Nasa Technical Paper
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Author :
language : en
Publisher:
Release Date : 1983
Nasa Technical Paper written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Astronautics categories.
Correlations Of Supersonic Boundary Layer Transition On Cones Including Effects Of Large Axial Variations In Wind Tunnel Noise
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Author : Fang-Jenq Chen
language : en
Publisher:
Release Date : 1984
Correlations Of Supersonic Boundary Layer Transition On Cones Including Effects Of Large Axial Variations In Wind Tunnel Noise written by Fang-Jenq Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Aerodynamics, Supersonic categories.
Comments On Hypersonic Boundary Layer Transition
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Author : Kenneth F. Stetson
language : en
Publisher:
Release Date : 1990
Comments On Hypersonic Boundary Layer Transition written by Kenneth F. Stetson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Aerodynamics, Hypersonic categories.
This is a survey paper on the subject of hypersonic boundary-layer transition. Part 1 discusses boundary-layer stability theory, hypersonic boundary-layer stability experiments, and a comparison between theory and experiment. Part 2 contains comments on how many configuration and flow parameters influence transition. Part 3 discusses some additional general aspects of transition. Part 4 discusses problems of predicting transition and comments on three prediction methods. Part 5 contains some general guidelines for prediction methodology. Keywords: Boundary layer transition, Boundary layer stability, Hypersonic boundary layers.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1979
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Science categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1992
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
Flight And Wind Tunnel Correlation Of Boundary Layer Transition On The Aedc Transition Cone
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Author :
language : en
Publisher:
Release Date : 1982
Flight And Wind Tunnel Correlation Of Boundary Layer Transition On The Aedc Transition Cone written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Advances In Hypersonics
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Author : BALLMAN
language : en
Publisher: Springer Science & Business Media
Release Date : 1992-05-01
Advances In Hypersonics written by BALLMAN 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 1992-05-01 with Technology & Engineering categories.
These three volumes entitled Advances in Hypersonics contain the Proceedings of the Second and Third Joint US/Europe Short Course in Hypersonics which took place in Colorado Springs and Aachen. The Second Course was organized at the US Air Force Academy, USA in January 1989 and the Third Course at Aachen, Germany in October 1990. The main idea of these Courses was to present to chemists, com puter scientists, engineers, experimentalists, mathematicians, and physicists state of the art lectures in scientific and technical dis ciplines including mathematical modeling, computational methods, and experimental measurements necessary to define the aerothermo dynamic environments for space vehicles such as the US Orbiter or the European Hermes flying at hypersonic speeds. The subjects can be grouped into the following areas: Phys ical environments, configuration requirements, propulsion systems (including airbreathing systems), experimental methods for external and internal flow, theoretical and numerical methods. Since hyper sonic flight requires highly integrated systems, the Short Courses not only aimed to give in-depth analysis of hypersonic research and technology but also tried to broaden the view of attendees to give them the ability to understand the complex problem of hypersonic flight. Most of the participants in the Short Courses prepared a docu ment based on their presentation for reproduction in the three vol umes. Some authors spent considerable time and energy going well beyond their oral presentation to provide a quality assessment of the state of the art in their area of expertise as of 1989 and 1991.
Aerodynamic Data Accuracy And Quality
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Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium
language : en
Publisher:
Release Date : 1988
Aerodynamic Data Accuracy And Quality written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Aerodynamic load categories.
The wind tunnel continues to be the main instrument for providing experimental aerodynamic data to the aerospace industry and the aerodynamic researcher for the purpose of load and performance evaluation and for verification of theoretical results. In both cases it is imperative that the user has confidence in the quality of the results, which means that he must have information on what accuracy to attach to the data. The quality of wind tunnel results depends upon both the accuracy of measurements and the imperfections provided by the wind tunnel environment. Great strides have been made in recent years on measurement accuracy and as a rule this need no longer be of much concern if properly attended to. However, imperfections provided by the wind tunnel environment are still with us and these are today the main sources affecting the quality and accuracy of aerodynamic data obtained in a wind tunnel. It was the purpose of this symposium to try to define what accuracy has presently been achieved in modern facilities and to compare these achievements with the actual demands of the user.
An Electronic Workshop On The Performance Seeking Control And Propulsion Controlled Aircraft Results Of The F 15 Highly Integrated Digital Electronic Control Flight Research Program
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Author :
language : en
Publisher:
Release Date : 1995
An Electronic Workshop On The Performance Seeking Control And Propulsion Controlled Aircraft Results Of The F 15 Highly Integrated Digital Electronic Control Flight Research Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.