Dynamical models for control of cavity oscillations

Clarence W. Rowley, Tim Colonius, Richard M. Murray

Research output: Contribution to conferencePaperpeer-review

43 Scopus citations


We investigate nonlinear dynamical models for selfsustained oscillations in the flow past a rectangular cavity. The models are based on the method of Proper Orthogonal Decomposition (POD) and Galerkin projection, and we introduce an inner product and formulation of the equations of motion which enables one to use vector-valued POD modes for compressible flows. We obtain models between 3 and 20 states, which accurately describe both the shorttime and long-time dynamics. This is a substantial improvement over previous models based on scalarvalued POD modes, which capture the dynamics for short time, but deviate for long time.

Original languageEnglish (US)
StatePublished - Dec 1 2001
Externally publishedYes
Event7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001 - Maastricht, Netherlands
Duration: May 28 2001May 30 2001


Other7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics


Dive into the research topics of 'Dynamical models for control of cavity oscillations'. Together they form a unique fingerprint.

Cite this