DocumentCode
706745
Title
Use of a low order dynamical system to control the flow between two counter-rotating disks
Author
Djamai, L. ; Coirault, P. ; Mehdi, D. ; Cordier, L. ; Delville, J. ; Pecheux, J.
Author_Institution
Lab. d´Autom. et d´Inf. Ind., Ecole Super. d´Ing. de Poitiers, Poitiers, France
fYear
1999
fDate
Aug. 31 1999-Sept. 3 1999
Firstpage
2442
Lastpage
2446
Abstract
This paper presents the control of a turbulent flow between two counter-rotating disks. A low-order dynamical model is obtained by the use of a Proper Orthogonal Decomposition technique. The POD is performed for a nominal value of the Reynolds number. Control input is the disk rotation speed and modifies the Reynolds number. Hence, the dynamical model becomes uncertain but the extent of imprecisions are upper bounded. A sliding control methodology is considered to control the system on a limit cycle.
Keywords
discs (structures); flow control; nonlinear control systems; turbulence; variable structure systems; POD; Reynolds number; counter-rotating disks; disk rotation speed; dynamical model; limit cycle; low order dynamical system; proper orthogonal decomposition technique; sliding control methodology; turbulent flow control; Non linear system; sliding control;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Conference (ECC), 1999 European
Conference_Location
Karlsruhe
Print_ISBN
978-3-9524173-5-5
Type
conf
Filename
7099689
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