NASA-Langley Research Center
Flow-Induced Cavity Oscillations
Sponsored by NASA-Langley Research Center
Last Modified: Feb 16th 2009

Cavity Model

Investigators
Description
Objectives
  • Use cavity flow-tone problem as a test bed for real-time adaptive flow control
  • Develop a recursive controller design algorithm for use in a self-tuning adaptive controller
Goals
  • Minimize the pressure fluctuations on the cavity walls
  • Broadband disturbance rejection
Publications

Cattafesta, L., Song, Q., Williams, D.R., Rowley, C.W., and Alvi, F.S., "Active Control of Flow-Induced Cavity Oscillations," Progress in Aerospace Sciences, Vol. 44, pp. 459-502, December 2008. (Abstract)

Ukeiley, L., Murray, N., Song, Q., and Cattafesta, L., "Surface Pressure Based Estimation for Control," IUTAM Symposium on Flow Control and MEMS, IUTAM Bookseries , Vol. 7, Morrison, J.F.; Birch, D.M.; Lavoie, P. (Eds.), pp. 183-190, 2008. (Abstract)

Kegerise, M.A., Cabell, R.H., and Cattafesta, L., "Real-time feedback control of flow-induced cavity tones — Part 1: Fixed-gain control," Journal of Sound and Vibration, Vol. 307, Issues 3-5, pp. 906-923, November 2007. (Abstract)

Kegerise, M.A., Cabell, R.H., and Cattafesta, L., "Real-time feedback control of flow-induced cavity tones — Part 2: Adaptive control," Journal of Sound and Vibration, Vol. 307, Issues 3-5, pp. 924-940, November 2007. (Abstract)