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  • 1
    facet.materialart.
    Unknown
    Studies of light-twin wing-body interference (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The results of an analytical study of aerodynamic interference effects for a light twin aircraft are presented. The data presented concentrates on the influence of a wing on a body (the fuselage). Wind tunnel comparisons of three fillets are included, with corresponding computational analysis. Results indicate that potential flow analysis is useful to guide the design of intersection fairings, but experimental tuning is still required. While the study specifically addresses a light twin aircraft, the methods are applicable to a wide variety of aircraft.
    Keywords: AERODYNAMICS
    Type: SAE PAPER 830709
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Computational and experimental studies of light twin aerodynamic interference (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The results of an analytical and experimental study of aerodynamic interference effects for a light twin aircraft are presented. Both the influence of a body (either fuselage or nacelle) on a wing and the influence of a wing on a body are studied. The wing studied uses a new natural laminar flow airfoil with variable camber movable trailing edge. A three-dimensional panel method program utilizing surface source and surface doublet singularities was used to design wing-nacelle and wing-fuselage fairings. Experiments were conducted using a 1/6 scale reflection plane model. Forces, pressures, and surface flow visualization results are presented. Results indicate that potential flow analysis is useful to guide the design of intersection fairings, but experimental tuning is still required. While the study specifically addressed a light twin aircraft, the methods are applicable to a wide variety of aircraft.
    Keywords: AERODYNAMICS
    Type: International Council of the Aeronautical Sciences; Aug 22, 1982 - Aug 27, 1982; Seattle, WA
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Design of high lift airfoils with a Stratford distribution by the Eppler method (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Airfoils having a Stratford pressure distribution, which has zero skin friction in the pressure recovery area, were investigated in an effort to develop high lift airfoils. The Eppler program, an inverse conformal mapping technique where the x and y coordinates of the airfoil are developed from a given velocity distribution, was used.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CR-153913 , UILU-ENG-75-0505 , AAE-75-5
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Unknown
    Program manual for the Eppler airfoil inversion program (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A computer program is described for calculating the profile of an airfoil as well as the boundary layer momentum thickness and energy form parameter. The theory underlying the airfoil inversion technique developed by Eppler is discussed.
    Keywords: AERODYNAMICS
    Type: NASA-CR-153928 , UILU-ENG-75-0504 , AAE-75-4
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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