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  • 1985-1989  (2)
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  • 1
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    Unknown
    Euler solution of the transonic flow for a helicopter rotor (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A new method is presented for calculating the quasi-steady transonic flow over a lifting or nonlifting rotor blade in both hover and forward flight by using Euler equations. The approach is to solve the Euler equations in a rotor-fixed frame of reference using a finite volume method. A computer program was developed and was then verified by comparison with wind-tunnel data. In all cases considered, good agreement was found with available experimental data.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 87-0523
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Prediction of unsteady transonic rotor loads with a full-potential rotor code (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A new version of the full-potential rotor code (FPR) is described. This revised version contains improvements in code structure, algorithm implementation, and input/output options over the earlier version. The FPR code is coupled to a rotor-wake and trim model and the resulting combined code is used to predict surface pressures for three experimentally tested helicopter rotors. Generally good agreement is seen between computed and experimental results.
    Keywords: AERODYNAMICS
    Type: AHS, Annual Forum; May 18, 1987 - May 20, 1987; Saint Louis, MO; United States
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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