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A Water Tunnel Flow Visualization Study Of The Vortex Flow Structures On The F A 18 Aircraft
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Book Synopsis A Water Tunnel Flow Visualization Study of the Vortex Flow Structures on the F/A-18 Aircraft by : Edgar J. Ramirez
Download or read book A Water Tunnel Flow Visualization Study of the Vortex Flow Structures on the F/A-18 Aircraft written by Edgar J. Ramirez and published by . This book was released on 1990 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Water Tunnel Flow Visualization Study of the Vortex Flow Structures on the F/a-18 Aircraft by : National Aeronautics and Space Adm Nasa
Download or read book A Water Tunnel Flow Visualization Study of the Vortex Flow Structures on the F/a-18 Aircraft written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-12 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vortex flow structures occurring on the F/A-18 aircraft at high angles of attack were studied. A water tunnel was used to gather flow visualization data on the forebody vortex and the wing leading edge extension vortex. The longitudinal location of breakdown of the leading edge vortex was found to be consistently dependent on the angle of attack. Other parameters such as Reynolds number, model scale, and model fidelity had little influence on the overall behavior of the flow structures studied. The lateral location of the forebody vortex system was greatly influenced by changes in the angle of sideslip. Strong interactions can occur between the leading edge extension vortex and the forebody vortex. Close attention was paid to vortex induced flows on various airframe components of the F/A-18. Reynolds number and angle of attack greatly affected the swirling intensity, and therefore the strength of the studied vortices. Water tunnel results on the F/A-18 correlated well with those obtained in similar studies at both full and sub scale levels. The water tunnel can provide, under certain conditions, good simulations of realistic flows in full scale configurations. Sandlin, Doral R. and Ramirez, Edgar J. Unspecified Center FLOW DISTRIBUTION; FLOW VISUALIZATION; HYDRAULIC TEST TUNNELS; LEADING EDGES; VORTICES; WING PROFILES; AIRFRAMES; ANGLE OF ATTACK; FOREBODIES; REYNOLDS NUMBER; SCALE MODELS; SIDESLIP; SWIRLING...
Book Synopsis Wind Tunnel Investigation of Vortex Flows on F/A-18 Configuration at Subsonic Through Transonic Speeds by : Gary E. Erickson
Download or read book Wind Tunnel Investigation of Vortex Flows on F/A-18 Configuration at Subsonic Through Transonic Speeds written by Gary E. Erickson and published by . This book was released on 1991 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1995 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Tunnel Flow Visualization Study of a 4.4 Percent Scale X-31 Forebody by :
Download or read book Water Tunnel Flow Visualization Study of a 4.4 Percent Scale X-31 Forebody written by and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723487941 Total Pages :170 pages Book Rating :4.4/5 (879 download)
Book Synopsis Wind Tunnel Investigation of Vortex Flows on F/a-18 Configuration at Subsonic Through Transonic Speed by : National Aeronautics and Space Administration (NASA)
Download or read book Wind Tunnel Investigation of Vortex Flows on F/a-18 Configuration at Subsonic Through Transonic Speed written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind tunnel experiment was conducted in the David Taylor Research Center 7- by 10-Foot Transonic Tunnel of the wing leading-edge extension (LEX) and forebody vortex flows at subsonic and transonic speeds about a 0.06-scale model of the F/A-18. The primary goal was to improve the understanding and control of the vortical flows, including the phenomena of vortex breakdown and vortex interactions with the vertical tails. Laser vapor screen flow visualizations, LEX, and forebody surface static pressures, and six-component forces and moments were obtained at angles of attack of 10 to 50 degrees, free-stream Mach numbers of 0.20 to 0.90, and Reynolds numbers based on the wing mean aerodynamic chord of 0.96 x 10(exp 6) to 1.75 x 10(exp 6). The wind tunnel results were correlated with in-flight flow visualizations and handling qualities trends obtained by NASA using an F-18 High-Alpha Research Vehicle (HARV) and by the Navy and McDonnell Douglas on F-18 aircraft with LEX fences added to improve the vertical tail buffet environment. Key issues that were addressed include the sensitivity of the vortical flows to the Reynolds number and Mach number; the reduced vertical tail excitation, and the corresponding flow mechanism, in the presence of the LEX fence; the repeatability of data obtained during high angle-of-attack wind tunnel testing of F-18 models; the effects of particle seeding for flow visualization on the quantitative model measurements; and the interpretation of off-body flow visualizations obtained using different illumination and particle seeding techniques. Erickson, Gary E. Glenn Research Center F-18 AIRCRAFT; FOREBODIES; INTERACTIONAL AERODYNAMICS; LEADING EDGES; VORTEX BREAKDOWN; VORTICES; WIND TUNNEL TESTS; WINGS; ANGLE OF ATTACK; BUFFETING; FLOW VISUALIZATION; MACH NUMBER; REYNOLDS NUMBER; STABILIZERS (FLUID DYNAMICS); SUBSONIC SPEED; TAIL ASSEMBLIES; TRANSONIC SPEED; TRANSONIC WIND TUNNELS...
Book Synopsis Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 274) by :
Download or read book Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 274) written by and published by . This book was released on 1992 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1990 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1994 with total page 1064 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 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1991 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1991 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow Visualization Water Tunnel by : G. A. Dobrodzicki
Download or read book Flow Visualization Water Tunnel written by G. A. Dobrodzicki and published by . This book was released on 1982 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intention of this report is to demonstrate the utility of theflow visualization water tunnel in the field of experimentalfluid dynamics and also provide guidance to its prospectiveusers. A brief description of the facility and its ancillaryequipment is followed by a short description of the flowvisualization techniques. To emphasize the diversity of subjectstested in the water tunnel, a list of typical experiments and anumber of photographs are presented.
Book Synopsis NASA Technical Paper by : United States. National Aeronautics and Space Administration
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1991 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wind Tunnel Investigation of Vortex Flows on F/A-18 Configuration at Subsonic Through Transonic Speed by :
Download or read book Wind Tunnel Investigation of Vortex Flows on F/A-18 Configuration at Subsonic Through Transonic Speed written by and published by . This book was released on 1991 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
