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Unsteady aerodynamics and flutter of propfans using a three-dimensional Full-Potential SolverA full-potential solver coupled with a linear structural dynamics model is used to calculate the unsteady aerodynamics and aeroelasticity of propfans. The solver allows calculations for arbitrary interblade phase angles. Results are presented for two propfan configurations. Good agreement is seen between the full-potential results and results from linear theory since the flow is subsonic and the thickness of the propfan blades is small. Some difficulty is encountered due to wave reflections from outer computational boundaries; however, this does not affect the results in the range of frequencies of aeroelastic interest.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Bakhle, Milind A.
(NASA Lewis Research Center Cleveland, OH, United States)
Reddy, T. S. R.
(Toledo Univ. OH, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: AIAA(ASME)ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures Forum, La Jolla, CA, Apr. 19-22, 1993, Technical Papers. Pt. 5 (A93-33876 1
Publisher: American Institute of Aeronautics and Astronautics
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA PAPER 93-1633
Accession Number
Funding Number(s)
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