| Low-Speed Longitudinal Aerodynamic Characteristics of a Flat-Plate Planform Model of an Advanced Fighter Configuration Contributor(s): Nasa, National Aeronautics and Space Adm (Author) |
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ISBN: 1729310982 ISBN-13: 9781729310984 Publisher: Independently Published OUR PRICE: $17.09 Product Type: Paperback Published: October 2018 * Not available - Not in print at this time * |
| Additional Information |
| BISAC Categories: - Science | Space Science |
| Physical Information: 0.1" H x 8.5" W x 11.02" (0.30 lbs) 48 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: A flat-plate wind tunnel model of an advanced fighter configuration was tested in the NASA LaRC Subsonic Basic Research Tunnel and the 16- by 24-inch Water Tunnel. The test objectives were to obtain and evaluate the low-speed longitudinal aerodynamic characteristics of a candidate configuration for the integration of several new innovative wing designs. The flat plate test allowed for the initial evaluation of the candidate planform and was designated as the baseline planform for the innovative wing design study. Low-speed longitudinal aerodynamic data were obtained over a range of freestream dynamic pressures from 7.5 psf to 30 psf (M = 0.07 to M = 0.14) and angles-of-attack from 0 to 40 deg. The aerodynamic data are presented in coefficient form for the lift, induced drag, and pitching moment. Flow-visualization results obtained were photographs of the flow pattern over the flat plate model in the water tunnel for angles-of-attack from 10 to 40 deg. The force and moment coefficients and the flow-visualization photographs showed the linear and nonlinear aerodynamic characteristics due to attached flow and vortical flow over the flat plate model. Comparison between experiment and linear theory showed good agreement for the lift and induced drag; however, the agreement was poor for the pitching moment. Mcgrath, Brian E. and Neuhart, Dan H. and Gatlin, Gregory M. and Oneil, Pat Langley Research Center RTOP 505-68-70-05... |