Experimental sensitivity analysis via a secondary heat source in an oscillating thermoacoustic system
File(s)
Published version
Author(s)
Jamieson, Nicholas P
Rigas, Georgios
Juniper, Matthew P
Type
Journal Article
Abstract
In this article, we report the results of an experimental sensitivity analysis on a vertical electrically heated Rijke tube. We examine the stability characteristics of the system due to the introduction of a secondary heat source. The experimental sensitivity analysis is quantified by measuring the shift in linear growth and decay rate as well as the shift in the linear frequency during periods of growth and decay of thermoacoustic oscillations. Linear growth and decay rate measurements agree qualitatively well with the theoretical predictions from adjoint-based methods. A discrepancy in the linear frequency measurements highlight deficiencies in the model used for those predictions and shows that the experimental measurement of sensitivities is a stringent test of any thermoacoustic model. The findings suggest that adjoint-based methods are, in principle, capable of providing industry with a cheap and efficient tool for developing optimal control strategies for more complex thermoacoustic systems.
Date Issued
2017-12-01
Date Acceptance
2017-03-01
Citation
International Journal of Spray and Combustion Dynamics, 2017, 9 (4), pp.230-240
ISSN
1756-8277
Publisher
SAGE Publications
Start Page
230
End Page
240
Journal / Book Title
International Journal of Spray and Combustion Dynamics
Volume
9
Issue
4
Copyright Statement
© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000415334400003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Technology
Thermodynamics
Engineering, Mechanical
Engineering
Acoustics
flow control
instability control
ACTIVE CONTROL
COMBUSTION
Publication Status
Published
Coverage Spatial
Tech Univ Munich, Inst Adv Study, Munich, GERMANY
Date Publish Online
2017-03-28