Improved flutter boundary prediction for an isolated two-degree-of-freedom airfoil

Published

Journal Article

A novel method of computing the flutter boundary for an isolated airfoil based on a high-fidelity computational fluid dynamics model reveals unusual behavior in a critical transonic range. Inviscid and viscous predictions of the flutter boundary for the two airfoils examined differ substantially in this critical region and become sensitive to Mach number and grid topology due to complicated shock/boundary-layer interactions. Computational fluid dynamics predictions of the flutter boundary for a NACA 0012 section airfoil are also compared with previous experimental results.

Full Text

Duke Authors

Cited Authors

  • Schwarz, JB; Dowell, EH; Thomas, JP; Hall, KC; Rausch, RD; Bartels, RE

Published Date

  • November 1, 2009

Published In

Volume / Issue

  • 46 / 6

Start / End Page

  • 2069 - 2076

International Standard Serial Number (ISSN)

  • 0021-8669

Digital Object Identifier (DOI)

  • 10.2514/1.30703

Citation Source

  • Scopus