Experimental results and bifurcation analysis on scaled feedback control for subsonic cavity flows

X. Yuan, E. Caraballo, M. Debiasi, J. Little, A. Serrani, H. Özbay, M. Samimy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In this paper, we present the latest results of our ongoing research activities in the development of reduced-order models based feedback control of subsonic cavity flows. The model was developed using the Proper Orthogonal Decomposition of Particle Image Velocimetry images in conjunction with the Galerkin projection of the Navier-Stokes equations onto the resulting spatial eigenfunctions. Stochastic Estimation method was used to obtain the state estimation of the Galerkin system from real time surface pressure measurements. A linear-quadratic optimal controller was designed to reduce cavity flow resonance and tested in the experiments. Real-time implementation shows a significant reduction of the sound pressure level within the cavity, with a remarkable attenuation of the resonant tone and a redistribution of the energy into various modes with lower energy levels. A mathematical analysis of the performance of the LQ control, in agreement with the experimental results, is presented and discussed.

Original languageEnglish (US)
Title of host publication14th Mediterranean Conference on Control and Automation, MED'06
DOIs
StatePublished - Dec 1 2006
Externally publishedYes
Event14th Mediterranean Conference on Control and Automation, MED'06 - Ancona, Italy
Duration: Jun 28 2006Jun 30 2006

Publication series

Name14th Mediterranean Conference on Control and Automation, MED'06

Other

Other14th Mediterranean Conference on Control and Automation, MED'06
CountryItaly
CityAncona
Period6/28/066/30/06

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Experimental results and bifurcation analysis on scaled feedback control for subsonic cavity flows'. Together they form a unique fingerprint.

  • Cite this

    Yuan, X., Caraballo, E., Debiasi, M., Little, J., Serrani, A., Özbay, H., & Samimy, M. (2006). Experimental results and bifurcation analysis on scaled feedback control for subsonic cavity flows. In 14th Mediterranean Conference on Control and Automation, MED'06 [1700649] (14th Mediterranean Conference on Control and Automation, MED'06). https://doi.org/10.1109/MED.2006.328754