Reynolds Number Effects At High Angles Of Attack

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Reynolds Number Effects At High Angles Of Attack
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Author : David F. Fisher
language : en
Publisher:
Release Date : 1998
Reynolds Number Effects At High Angles Of Attack written by David F. Fisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Airplanes, Military categories.
Lessons learned from comparision between ground-based tests and flight measurements for the high-angle-of-attack programs on the F-18 High Alpha Research Vehicle (HARV), the X-29 forward-swept wing aircraft, and the X-31 enhanced fighter maneuverability aircraft are presented. On all three vehicles, Reynolds number effects were evident on the forebodies at high angles of attack. The correlation between flight and wind tunnel forebody pressure distributions for the F-18 HARV were improved by using twin longitudinal grit strips on the forebody of the wind-tunnel model. Pressure distributions obtained on the X-29 wind-tunnel model at flight Reynolds numbers showed excellent correlation with the flight data up to [alpha]=50 deg. Above [alpha]=50 deg. the pressure distributions for both flight and wind tunnel became asymmetric and showed poorer agreement, possibly because of the different surface finish of the model and aircraft. The detrimental effect of a very sharp nose apex was demonstrated on the X-31 aircraft. Grit strips on the forebody of the X-31 reduced the randomness but increased the magnitude of the asymmetry. Nose strakes were required to reduce the forebody yawing moment asymmetries and the grit strips on the flight test noseboom improved the aircraft.
Nasa Technical Note
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Author :
language : en
Publisher:
Release Date : 1977
Nasa Technical Note written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
Nasa Technical Paper
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Author :
language : en
Publisher:
Release Date : 1989
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 1989 with Science categories.
Nasa Technical Memorandum
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Author :
language : en
Publisher:
Release Date : 1986
Nasa Technical Memorandum written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Aeronautics categories.
Report
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Author :
language : en
Publisher:
Release Date : 1958
Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Aeronautics categories.
Technical Note
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Author :
language : en
Publisher:
Release Date : 1952
Technical Note written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1952 with Aeronautics categories.
Report National Advisory Committee For Aeronautics
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date : 1951
Report National Advisory Committee For Aeronautics written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with Aeronautics categories.
Annual Report Of The National Advisory Committee For Aeronautics
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date :
Annual Report Of The National Advisory Committee For Aeronautics written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Aeronautics categories.
Technical Note National Advisory Committee For Aeronautics
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date : 1957
Technical Note National Advisory Committee For Aeronautics written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Aeronautics categories.
Nasa Technical Paper
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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1989
Nasa Technical Paper written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aeronautics categories.