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Investigation Of A Moving Model Technique For Measuring Ground Effect
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Book Synopsis Investigation of a Moving-Model Technique for Measuring Ground Effect by : National Aeronautics and Space Adm Nasa
Download or read book Investigation of a Moving-Model Technique for Measuring Ground Effect written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-20 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ground-based testing technique is under development for the measurement of dynamic or time-dependent ground effects which may be present during aircraft approach and landing. The technique utilizes a model moving horizontally over an upwardly-inclined ground plane to simulate rate of descent. Results were obtained in the Langley Research Center (LaRC) Vortex Research Facility (VRF) for a generic 60 delta wing and for an F-18 configuration, both with and without thrust reversing, at forward speeds up to 100 ft/sec. These same models and support hardware were also tested in the LaRC 14 by 22 Foot Subsonic Tunnel at identical conditions (but without rate of descent) with and without a moving-belt ground plane to obtain data for comparison. Kemmerly, Guy T. and Paulson, John W., Jr. Langley Research Center RTOP 505-61-71-02...
Book Synopsis Investigation of a Moving-model Technique for Measuring Ground Effect by :
Download or read book Investigation of a Moving-model Technique for Measuring Ground Effect written by and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of a Moving-model Technique for Measuring Ground Effects by : Guy T. Kemmerly
Download or read book Investigation of a Moving-model Technique for Measuring Ground Effects written by Guy T. Kemmerly and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of a Moving-model Technique for Measuring Ground Effects by : Guy T. Kennerly
Download or read book Investigation of a Moving-model Technique for Measuring Ground Effects written by Guy T. Kennerly and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel by :
Download or read book Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel written by and published by . This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720604181 Total Pages :66 pages Book Rating :4.6/5 (41 download)
Book Synopsis Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel by : National Aeronautics and Space Administration (NASA)
Download or read book Investigation of a Technique for Measuring Dynamic Ground Effect in a Subsonic Wind Tunnel written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: To better understand the ground effect encountered by slender wing supersonic transport aircraft, a test was conducted at NASA Langley Research Center's 14 x 22 foot Subsonic Wind Tunnel in October, 1997. Emphasis was placed on improving the accuracy of the ground effect data by using a "dynamic" technique in which the model's vertical motion was varied automatically during wind-on testing. This report describes and evaluates different aspects of the dynamic method utilized for obtaining ground effect data in this test. The method for acquiring and processing time data from a dynamic ground effect wind tunnel test is outlined with details of the overall data acquisition system and software used for the data analysis. The removal of inertial loads due to sting motion and the support dynamics in the balance force and moment data measurements of the aerodynamic forces on the model is described. An evaluation of the results identifies problem areas providing recommendations for future experiments. Test results are validated by comparing test data for an elliptical wing planform with an Elliptical wing planform section with a NACA 0012 airfoil to results found in current literature. Major aerodynamic forces acting on the model in terms of lift curves for determining ground effect are presented. Comparisons of flight and wind tunnel data for the TU-144 are presented.Graves, Sharon S.Langley Research CenterGROUND EFFECT (AERODYNAMICS); AERODYNAMIC FORCES; SUBSONIC WIND TUNNELS; WIND TUNNEL TESTS; DATA ACQUISITION; AIRCRAFT DESIGN; AERODYNAMIC CONFIGURATIONS; AIRCRAFT CONFIGURATIONS; SLENDER WINGS; WING PLANFORMS; SUPERSONIC TRANSPORTS; TU-144 AIRCRAFT; VERTICAL MOTION
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Ground Effect for a Cranked Arrow Wing Airplane by : Robert E. Curry
Download or read book Dynamic Ground Effect for a Cranked Arrow Wing Airplane written by Robert E. Curry and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Moving-model Technique Used in Automobile Aerodynamics for Measurement of Ground Effects by : H. D. Papenfuss
Download or read book Moving-model Technique Used in Automobile Aerodynamics for Measurement of Ground Effects written by H. D. Papenfuss and published by . This book was released on 1990 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722185497 Total Pages :34 pages Book Rating :4.1/5 (854 download)
Book Synopsis Dynamic Ground-Effect Measurements on the F-15 Stol and Maneuver Technology Demonstrator (S/Mtd) Configuration by : National Aeronautics and Space Administration (NASA)
Download or read book Dynamic Ground-Effect Measurements on the F-15 Stol and Maneuver Technology Demonstrator (S/Mtd) Configuration written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A moving-model ground-effect testing method was used to study the influence of rate-of-descent on the aerodynamic characteristics for the F-15 STOL and Maneuver Technology Demonstrator (S/MTD) configuration for both the approach and roll-out phases of landing. The approach phase was modeled for three rates of descent, and the results were compared to the predictions from the F-15 S/MTD simulation data base (prediction based on data obtained in a wind tunnel with zero rate of descent). This comparison showed significant differences due both to the rate of descent in the moving-model test and to the presence of the ground boundary layer in the wind tunnel test. Relative to the simulation data base predictions, the moving-model test showed substantially less lift increase in ground effect, less nose-down pitching moment, and less increase in drag. These differences became more prominent at the larger thrust vector angles. Over the small range of rates of descent tested using the moving-model technique, the effect of rate of descent on longitudinal aerodynamics was relatively constant. The results of this investigation indicate no safety-of-flight problems with the lower jets vectored up to 80 deg on approach. The results also indicate that this configuration could employ a nozzle concept using lower reverser vector angles up to 110 deg on approach if a no-flare approach procedure were adopted and if inlet reingestion does not pose a problem. Kemmerly, Guy T. Langley Research Center RTOP 505-61-71-02...
Book Synopsis Exploratory Evaluation of a Moving Model Technique for Measurement of Dynamic Ground Effects by : Guy T. Kemmerly
Download or read book Exploratory Evaluation of a Moving Model Technique for Measurement of Dynamic Ground Effects written by Guy T. Kemmerly and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1951 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Institute of Aeronautics and Astronautics Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :838 pages Book Rating :4.3/5 (91 download)
Book Synopsis Atmospheric Flight Mechanics Conference Held August, 1997 at New Orleans, Louisiana by : American Institute of Aeronautics and Astronautics
Download or read book Atmospheric Flight Mechanics Conference Held August, 1997 at New Orleans, Louisiana written by American Institute of Aeronautics and Astronautics and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1997 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the proceedings of the Atmospheric Flight Mechanics Conference, which took place in New Orleans, August 1997. It focuses on the technical progress, issues and challenges associated with atmospheric flight. Technical papers address stability and control, flying qualities (including one session dedicated to pilot-induced oscillations), unsteady and vortex aerodynamics, system and parameter identification, aircraft flight dynamic re-entry and aero assist technologies, and reusable launch vehicles.
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1978 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Research of the National Bureau of Standards by : United States. National Bureau of Standards
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1934 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Effect Machine Research and Development in the United States by : Harvey R. Chaplin
Download or read book Ground Effect Machine Research and Development in the United States written by Harvey R. Chaplin and published by . This book was released on 1960 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1970 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
