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Comparisons of Flutter Analyses for an Experimental Fan

Author
Stefko, George L.
Published
April 2010.
Physical Description
1 electronic document
Additional Creators
Bakhle, Milind A. and Reddy, T. S. R.
Online Version

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Summary
Two propulsion aeroelasticity codes were used to model the aeroelastic characteristics of an experimental forward-swept fan that encountered flutter during wind tunnel testing. Both of these three-dimensional codes model the unsteady flowfield due to blade vibrations using the Navier-Stokes equations. In the first approach, the unsteady flow equations are solved using an implicit time-marching approach. In the second approach, the unsteady flow equations are converted to a harmonic balance form and solved using a pseudo-time marching method. This paper describes the flutter calculations and compares the results to experimental measurements.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20100019467.
E-17202.
NASA/TM-2010-216221.
ISABE-2009-1189.
19th International Society for Air Breathing Engines Conference (ISABE 2009); 7-11 Sep. 2009; Montreal, Quebec; Canada.
Terms of Use and Reproduction
Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 15995339