Experimental Results for the Eppler 387 Airfoil at Low Reynolds Numbers in the Langley Low-Turbulence Pressure Tunnel PDF Download
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Author: National Aeronautics and Space Administration (NASA) Publisher: Createspace Independent Publishing Platform ISBN: 9781723574788 Category : Languages : en Pages : 234
Book Description
Experimental results were obtained for an Eppler 387 airfoil in the Langley Low Turbulence Pressure Tunnel. The tests were conducted over a Mach number range from 0.03 to 0.13 and a chord Reynolds number range for 60,000 to 460,000. Lift and pitching moment data were obtained from airfoil surface pressure measurements and drag data for wake surveys. Oil flow visualization was used to determine laminar separation and turbulent reattachment locations. Comparisons of these results with data on the Eppler 387 airfoil from two other facilities as well as the Eppler airfoil code are included. Mcghee, Robert J. and Walker, Betty S. and Millard, Betty F. Langley Research Center NASA-TM-4062, L-16430, NAS 1.15:4062 RTOP 505-60-21-01...
Author: National Aeronautics and Space Administration (NASA) Publisher: Createspace Independent Publishing Platform ISBN: 9781723574788 Category : Languages : en Pages : 234
Book Description
Experimental results were obtained for an Eppler 387 airfoil in the Langley Low Turbulence Pressure Tunnel. The tests were conducted over a Mach number range from 0.03 to 0.13 and a chord Reynolds number range for 60,000 to 460,000. Lift and pitching moment data were obtained from airfoil surface pressure measurements and drag data for wake surveys. Oil flow visualization was used to determine laminar separation and turbulent reattachment locations. Comparisons of these results with data on the Eppler 387 airfoil from two other facilities as well as the Eppler airfoil code are included. Mcghee, Robert J. and Walker, Betty S. and Millard, Betty F. Langley Research Center NASA-TM-4062, L-16430, NAS 1.15:4062 RTOP 505-60-21-01...
Author: Thomas J. Mueller Publisher: Springer Science & Business Media ISBN: 3642840108 Category : Science Languages : en Pages : 456
Book Description
Current interest in a variety of low Reynolds number applications has focused attention on the design and evaluation of efficient airfoil sections at chord Reynolds numbers from about 100,000 to about 1,000,000. These applications include remotely piloted vehicles (RPVs) at high altitudes, sailplanes, ultra-light man-carrying/man powered aircraft, mini-RPVs at low altitudes and wind turbines/propellers. The purpose of this conference was to bring together those researchers who have been active in areas closely related to this subject. All of the papers presented are research type papers. Main topics are: Airfoil Design and Analysis, Computational Studies, Stability and Transition, Laminar Separation Bubble, Steady and Unsteady Wind Tunnel Experiments and Flight Experiments.
Author: Donald Greer Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 24
Book Description
A sailplane being developed at NASA Dryden Flight Research Center will support a high-altitude flight experiment. The experiment will measure the performance parameters of an airfoil at high altitudes (70,000 to 100,000 ft), low Reynolds numbers (200,000 to 700,000), and high subsonic Mach numbers (0.5 to 0.65). The airfoil section lift and drag are determined from pitot and static pressure measurements. The locations of the separation bubble, Tollmien-Schlichting boundary layer instability frequencies, and vortex shedding are measured from a hot-film strip. The details of the planned flight experiment are presented. Several predictions of the airfoil performance are also presented. Mark Drela from the Massachusetts Institute of Technology designed the APEX-16 airfoil, using the MSES code. Two-dimensional Navier-Stokes analyses were performed by Mahidhar Tatineni and Xiaolin Zhong from the University of California, Los Angeles, and by the authors at NASA Dryden.
Author: Russell M. Cummings Publisher: Cambridge University Press ISBN: 1107053749 Category : Mathematics Languages : en Pages : 893
Book Description
This book covers the application of computational fluid dynamics from low-speed to high-speed flows, especially for use in aerospace applications.
Author: Thomas J. Mueller Publisher: AIAA ISBN: 9781600864469 Category : Aerodynamics Languages : en Pages : 614
Book Description
This title reports on the latest research in the area of aerodynamic efficency of various fixed-wing, flapping wing, and rotary wing concepts. It presents the progress made by over fifty active researchers in the field.
Author: National Aeronautics and Space Administration (NASA)
Author: Robert J. McGhee
Author: National Aeronautics and Space Administration (NASA)
Author: Robert J. McGhee
Author: Thomas J. Mueller
Author: 
Author: Donald Greer
Author: 
Author: Russell M. Cummings
Author: Thomas J. Mueller
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