Please use this identifier to cite or link to this item:
Main Title: Extensions of adaptive slope-seeking for active flow control
Author(s): Henning, L.
Becker, R.
Feuerbach, G.
Muminovic, R.
King, Rudibert
Brunn, A.
Nitsche, W.
Type: Article
Language Code: en
Abstract: To speed up gradient estimation in a slope-seeking controller two different modifications are proposed in this study. In a first approach, the gradient estimation is based on a locally identified black-box model. A further improvement is obtained by applying an extended Kalman filter to estimate the local gradient of an input—output map. Moreover, a simple method is outlined to adapt the search radius in the classical extremum- and slope-seeking approach to reduce the perturbations near the optimal state. To show the versatility of the slope-seeking controller for flow control applications two different wind tunnel experiments are considered, namely with a two-dimensional bluff body and a generic three-dimensional car model (Ahmed body).
Issue Date: 2008
Date Available: 8-Jan-2019
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): active flow control
extremum-seeking control
slope-seeking control
Kalman filter
least square
Ahmed body
bluff body
Sponsor/Funder: DFG, SFB 557, Beeinflussung komplexer turbulenter Scherströmungen
Journal Title: Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering
Publisher: SAGE Publications
Publisher Place: Washington, DC
Volume: 222
Issue: 5
Publisher DOI: 10.1243/09596518JSCE490
Page Start: 309
Page End: 322
EISSN: 2041-3041
ISSN: 0959-6518
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Mess- und Regelungstechnik » Publications

Files in This Item:
File Description SizeFormat 
Henning_et_al_2008.pdf288.59 kBAdobe PDFThumbnail

Items in DepositOnce are protected by copyright, with all rights reserved, unless otherwise indicated.