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Record Details

Record 26 of 6870
Correlation of Puma airfoils - Evaluation of CFD prediction methods
Author and Affiliation:
Strawn, Roger C.(NASA Ames Research Center, U.S. Army, Aeroflightdynamics Directorate, Moffett Field)
Desopper, Andre(ONERA, Chatillon-sous-Bagneux, France)
Miller, Judith(NASA Ames Research Center, Moffett Field, CA, United States)
Jones, Alan(Royal Aerospace Establishment, Farnborough, United Kingdom)
Abstract: A cooperative program was undertaken by research organizations in England, France, Australia and the U.S. to study the capabilities of computational fluid dynamics codes (CFD) to predict the aerodynamic loading on helicopter rotor blades. The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades. Two topics are studied. First, computed results from three CFD codes are compared for flight test cases where all three codes use the same partial inflow-angle boundary conditions. Second, one of the CFD codes (FPR) is iteratively coupled with the CAMRAD/JA heilcopter performance code. These results are compared with experimental data and with an uncoupled CAMRAD/JA solution. The influence of flow field unsteadiness is found to play an important role in the blade aerodynamics. Alternate boundary conditions are suggested in order to properly model this unsteadiness in the CFD codes.
Publication Date: Jan 01, 1989
Document ID:
19900033990
(Acquired Nov 28, 1995)
Accession Number: 90A21045
Subject Category: AERODYNAMICS
Report/Patent Number: ONERA, TP NO. 1989-185
Document Type: Journal Article
Publication Information: ONERA; 1989-
Publisher Information: France
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Army Aviation Systems Command; Moffett Field, CA, United States
Royal Aerospace Establishment; Farnborough, United Kingdom
Office National d'Etudes et de Recherches Aerospatiales; Paris, France
Description: 20p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AERODYNAMIC LOADS; BLADE TIPS; FLOW DISTRIBUTION; HELICOPTER PERFORMANCE; ROTARY WINGS; COMPUTER PROGRAMS; FLIGHT TESTS; ROTOR AERODYNAMICS; UNSTEADY AERODYNAMICS
Imprint And Other Notes: (European Rotorcraft Forum, 14th, Amsterdam, Netherlands, Sept. 12-15, 1989) ONERA, TP no. 1989-185, 1989, 20 p. Previously announced in STAR as N89-28498.
Availability Source: Other Sources
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