Abstract
Chemiluminescence imaging, a common optical diagnostic used to study acoustically driven flames, suffers from poor resolution due to line of sight integration. An Abel transform can be used to extract planar profiles in flames of known symmetry; however, it may be insufficient near the axis of symmetry, for flames with unknown symmetry, and when there are several flame fronts close together. This paper presents the use of three-dimensional proper orthogonal decomposition (POD) to find flame fronts in a premixed methane flame undergoing self-excited thermoacoustic interactions. Three principal modes are found to be sufficient to describe the flame shape. Twodimensional POD was then performed on the flame fronts and the number of modes required to produce the entire reduced data set was found to depend on the Reynolds number of the reactant flow.
Original language | English |
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Title of host publication | Fall Meeting of the Eastern States Section of the Combustion Institute 2009 |
Pages | 514-520 |
Number of pages | 7 |
ISBN (Electronic) | 9781615676682 |
State | Published - 2009 |
Event | Fall Meeting of the Eastern States Section of the Combustion Institute 2009 - College Park, United States Duration: Oct 18 2009 → Oct 21 2009 |
Publication series
Name | Fall Meeting of the Eastern States Section of the Combustion Institute 2009 |
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Conference
Conference | Fall Meeting of the Eastern States Section of the Combustion Institute 2009 |
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Country/Territory | United States |
City | College Park |
Period | 10/18/09 → 10/21/09 |
Bibliographical note
Publisher Copyright:Copyright © 2009 by The Combustion Institute.
ASJC Scopus subject areas
- Chemical Engineering (all)
- Mechanical Engineering
- Physical and Theoretical Chemistry