Accession Number : ADA326026

Title :   A Comparison of Lifting-Line and CFD Methods with Flight Test Data from a Research Puma Helicopter.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER

Personal Author(s) : Bousman, William G. ; Young, Colin ; Toulmay, Francois ; Gilbert, Neil E. ; Strawn, Roger C.

PDF Url : ADA326026

Report Date : OCT 1996

Pagination or Media Count : 349

Abstract : Four lifting-line methods were compared with flight test data from a research Puma helicopter and the accuracy assessed over a wide range of flight speeds. Hybrid CFD methods were also examined for two high-speed conditions. A parallel analytical effort was performed with the lifting-line methods to assess the effects of modeling assumptions and this provided insight into the adequacy of these methods for load predictions.

Descriptors :   *FLIGHT TESTING, *COMPUTATIONAL FLUID DYNAMICS, *HELICOPTERS, AERODYNAMIC CHARACTERISTICS, FLIGHT SPEEDS.

Subject Categories : Aerodynamics
      Helicopters
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE