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Titel:

A systems perspective on non-normality in low-order thermoacoustic models: full norms, semi-norms and transient growth

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Blumenthal, R. S.; Tangirala, A. K.; Sujith, R.I.; Polifke, W.
Abstract:
Non-normal transient growth of energy is a feature encountered in many physical systems. Its observation is intimately related to the norm used to describe the system dynamics. For a multi-physics problem such as thermoacoustics, where a heat source is in feedback with acoustic waves and a flow field, the appropriate metric is an ongoing matter of debate. Adopting a systemic perspective, it is argued in the present paper that an energy norm is, in principle, a matter of choice, but one that is c...     »
Stichworte:
Non-normality, transient growth, energy norm, semi-norm, thermoacoustics
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften
Zeitschriftentitel:
International Journal of Spray and Combustion Dynamics
Jahr:
2017
Band / Volume:
9
Jahr / Monat:
2017-01
Quartal:
1. Quartal
Monat:
Mar
Heft / Issue:
1
Seitenangaben Beitrag:
19–43
Nachgewiesen in:
Scopus; Web of Science
Reviewed:
ja
Sprache:
en
Volltext / DOI:
doi:10.1177/1756827716652474
WWW:
http://journals.sagepub.com/doi/full/10.1177/1756827716652474
Verlag / Institution:
SAGE Publications Inc.
Status:
Verlagsversion / published
TUM Einrichtung:
Professur für Thermofluiddynamik
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