Nonlinear identification of thermoacoustic instabilities with limit cycles in a Rijke tube

Author

Agostino, E. ; Baldini, G. ; Bittanti, S. ; Marco, A. De ; Poncia, G. ; Randoni, W. ; Scarpellini, M.

Author_Institution

Dip. di Elettronica e Informazione, Politecnico di Milano, Italy

Volume

2

fYear

2002

fDate

2002

Firstpage

1147

Abstract

This paper deals with the development of a model of thermoacoustic instabilities, observed in a laboratory scale Rijke tube. The model is built via a thorough description of both the gas dynamics and the heat release process, which is concisely outlined. The validation is carried out on the basis of real experimental data, and it is founded on a mixed linear/nonlinear identification method with the support of the describing function theory for the detection of limit cycle behavior.

Keywords

chemically reactive flow; combustion; flow instability; limit cycles; nonlinear estimation; pipe flow; thermoacoustics; Rijke tube; combustion systems; describing function theory; gas dynamics; heat release process; laboratory scale Rijke tube; limit cycles; mixed linear/nonlinear identification method; nonlinear identification; thermoacoustic instabilities; Damping; Ducts; Fires; Fluid dynamics; Heating; Laboratories; Limit-cycles; Missiles; Rockets; Turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2002. Proceedings of the 2002 International Conference on

Print_ISBN

0-7803-7386-3

Type

conf

DOI

10.1109/CCA.2002.1038767

Filename

1038767