Estimation techniques in a turbulent flow field

Julie M. Ausseur, Jeremy T. Pinier, Mark N Glauser

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

Abstract

Part of our continuous efforts to implement an effective closed-loop feedback control of the flow over a NACA 4412 airfoil is the obtention of an accurate estimate of the actual flow state. An elaborate controller combines both prediction and measurement techniques to obtain a precise estimation of the control variable. In this paper we focus on the measurement process. We first present the different candidates for the control variable, and describe the low-dimensional techniques employed. We then focus on the estimation methods that will be incorporated in the controller in order to access the state variable from the pressure real-time measurements. The investigation of the dynamics in the flow field and the correlations between the variables at stake reveal the benefits brought by a spectral estimation approach.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
Pages341-353
Number of pages13
Volume1
StatePublished - 2007
Event37th AIAA Fluid Dynamics Conference - Miami, FL, United States
Duration: Jun 25 2007Jun 28 2007

Other

Other37th AIAA Fluid Dynamics Conference
CountryUnited States
CityMiami, FL
Period6/25/076/28/07

Fingerprint

Turbulent flow
Flow fields
Controllers
Time measurement
Airfoils
Feedback control

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

Cite this

Ausseur, J. M., Pinier, J. T., & Glauser, M. N. (2007). Estimation techniques in a turbulent flow field. In Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference (Vol. 1, pp. 341-353)

Estimation techniques in a turbulent flow field. / Ausseur, Julie M.; Pinier, Jeremy T.; Glauser, Mark N.

Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference. Vol. 1 2007. p. 341-353.

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

Ausseur, JM, Pinier, JT & Glauser, MN 2007, Estimation techniques in a turbulent flow field. in Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference. vol. 1, pp. 341-353, 37th AIAA Fluid Dynamics Conference, Miami, FL, United States, 6/25/07.
Ausseur JM, Pinier JT, Glauser MN. Estimation techniques in a turbulent flow field. In Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference. Vol. 1. 2007. p. 341-353
Ausseur, Julie M. ; Pinier, Jeremy T. ; Glauser, Mark N. / Estimation techniques in a turbulent flow field. Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference. Vol. 1 2007. pp. 341-353
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