Towards practical flow sensing and control via POD and LSE based low-dimensional tools

J. A. Taylor, M. N. Glauser

Research output: Contribution to journalArticle

107 Scopus citations


Low-dimensional methods including the Proper Orthogonal Decomposition (POD) and Linear Stochastic Estimation (LSE) have been applied to the flow between a backward facing ramp and an adjustable flap. A range of flap angles provide a flow which is incipiently separated and can be used to flesh out ideas for active feedback separation control strategies. The current study couples Particle Image Velocimetry (PIV) and multipoint wall pressure measurements using POD and LSE to estimate the full velocity field from the wall pressure alone. This technique yields a sufficiently accurate estimate of the velocity field that the incipient condition can be detected. The ability to estimate the state of the flow without inserting probes into the flow is important for the development of practical active feedback flow control strategies.

Original languageEnglish (US)
Pages (from-to)337-345
Number of pages9
JournalJournal of Fluids Engineering, Transactions of the ASME
Issue number3
StatePublished - May 1 2004


ASJC Scopus subject areas

  • Mechanical Engineering

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