Fan flutter computations using the harmonic balance method

Journal Article

An experimental forward-swept fan encountered flutter at part-speed conditions during wind tunnel testing. A new propulsion aeroelasticity code, based on a computational fluid dynamics (CFD) approach, was used to model the aeroelastic behavior of this fan. This three-dimensional code models the unsteady flowfield due to blade vibrations using a harmonic balance method to solve the Navier-Stokes equations. This paper describes the flutter calculations and compares the results to experimental measurements and previous results from a time-accurate propulsion aeroelasticity code.

Duke Authors

Cited Authors

  • Bakhle, MA; Thomas, JP; Reddy, TSR

Published Date

  • 2008

Published In

  • 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit