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Low Speed Analysis Of Mission Adaptive Flaps On A High Speed Civil Transport Configuration

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Low Speed Analysis Of Mission Adaptive Flaps On A High Speed Civil Transport Configuration

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Author :
language : en
Publisher:
Release Date : 1999

Low Speed Analysis Of Mission Adaptive Flaps On A High Speed Civil Transport Configuration written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Low Speed Analysis Of Mission Adaptive Flaps On A High Speed Civil Transport Configuration

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-03

Low Speed Analysis Of Mission Adaptive Flaps On A High Speed Civil Transport Configuration written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-03 with categories.

Thin-layer Navier-Stokes analyses were done on a high speed civil transport configuration with mission adaptive leading-edge flaps. The flow conditions simulated were Mach = 0.22 and Reynolds number of 4.27 million for angles-of-attack ranging from 0 to 18 degrees. Two turbulence closure models were used. Analyses were done exclusively with the Baldwin-Lomax turbulence model at low angle-of-attack conditions. At high angles-of-attack where considerable flow separation and vortices occurred the Spalart-Allmaras turbulence model was also considered. The effects of flow transition were studied. Predicted aerodynamic forces, moment, and pressure are compared to experimental data obtained in the 14- by 22-Foot Subsonic Tunnel at NASA Langley. The forces and moments correlated well with experimental data in terms of trends. Drag and pitching moment were consistently underpredicted. Predicted surface pressures compared well with experiment at low angles-of-attack. Above 10 angle-of-attack the pressure comparisons were not as favorable. The two turbulent models affected the pressures on the flap considerably and neither produced correct results at the high angles-of-attack.Lessard, Victor R.Langley Research CenterTHIN FILMS; LOW SPEED; FLAPPING; TURBULENCE MODELS; PITCHING MOMENTS; MATHEMATICAL MODELS; LEADING EDGE FLAPS; BOUNDARY LAYER SEPARATION; BALDWIN-LOMAX TURBULENCE MODEL; VORTICES; TURBULENT FLOW; TRENDS; SUPERSONIC TRANSPORTS; SUBSONIC WIND TUNNELS; SEPARATED FLOW; REYNOLDS NUMBER; NAVIER-STOKES EQUATION; CLOSURE LAW; CIVIL AVIATION; AERODYNAMIC FORCES

Nasa Langley Scientific And Technical Information Output 1999

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Author :
language : en
Publisher:
Release Date : 2000

Nasa Langley Scientific And Technical Information Output 1999 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Astronautics categories.

Concept Development Of A Mach 3 0 High Speed Civil Transport

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Author :
language : en
Publisher:
Release Date : 1988

Concept Development Of A Mach 3 0 High Speed Civil Transport written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Aerodynamics, Supersonic categories.

Monthly Catalog Of United States Government Publications

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Author :
language : en
Publisher:
Release Date : 2000

Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Government publications categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

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 1995 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.