Skip to main content

Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis

Publication ,  Journal Article
Romanowski, MC; Dowell, EH
Published in: American Society of Mechanical Engineers, Aerospace Division (Publication) AD
December 1, 1994

Fluid eigenmodes are used to created an efficient unsteady aerodynamics analysis for a 2D isolated airfoil immersed in a compressible flow field. For the first time, the eigenmodes are used to transform the large set of coupled, primitive variable (density, velocity, etc) equations, obtained from a time marching finite difference approximation of the Euler equations, into a much smaller set of decoupled (modal) equations. These reduced order models are shown to accurately predict unsteady load histories for harmonically pitching and plunging motions, as well as for step changes in angle of attack.

Duke Scholars

Published In

American Society of Mechanical Engineers, Aerospace Division (Publication) AD

ISSN

0733-4230

Publication Date

December 1, 1994

Volume

44

Start / End Page

147 / 160

Related Subject Headings

  • Aerospace & Aeronautics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Romanowski, M. C., & Dowell, E. H. (1994). Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis. American Society of Mechanical Engineers, Aerospace Division (Publication) AD, 44, 147–160.
Romanowski, M. C., and E. H. Dowell. “Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis.” American Society of Mechanical Engineers, Aerospace Division (Publication) AD 44 (December 1, 1994): 147–60.
Romanowski MC, Dowell EH. Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis. American Society of Mechanical Engineers, Aerospace Division (Publication) AD. 1994 Dec 1;44:147–60.
Romanowski, M. C., and E. H. Dowell. “Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis.” American Society of Mechanical Engineers, Aerospace Division (Publication) AD, vol. 44, Dec. 1994, pp. 147–60.
Romanowski MC, Dowell EH. Using eigenmodes to form an efficient Euler based unsteady aerodynamics analysis. American Society of Mechanical Engineers, Aerospace Division (Publication) AD. 1994 Dec 1;44:147–160.

Published In

American Society of Mechanical Engineers, Aerospace Division (Publication) AD

ISSN

0733-4230

Publication Date

December 1, 1994

Volume

44

Start / End Page

147 / 160

Related Subject Headings

  • Aerospace & Aeronautics