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Time-resolved (kHz) 3D imaging of OH PLIF in a flame

Wellander, Rikard LU ; Richter, Mattias LU and Aldén, Marcus LU (2014) In Experiments in Fluids 55(6). p.1764-1764
Abstract
Based on scanning planar laser-induced fluorescence of OH, a measurement system with the capability to record time-resolved three-dimensional image sequences of the OH concentration and the flame front is demonstrated on a premixed flame. A dual-mirror scanning system is used to obtain equidistance between the illuminated planes. Non-uniformities in the laser sheet and laser absorption in the flame are compensated for as the position-and time-dependent OH concentration is calculated throughout the measurement volume. A method for identifying the flame front in large data sets with a single set of filtering parameter is demonstrated. The artefacts introduced by the non-instantaneous recording of the measurement volume are suppressed using... (More)
Based on scanning planar laser-induced fluorescence of OH, a measurement system with the capability to record time-resolved three-dimensional image sequences of the OH concentration and the flame front is demonstrated on a premixed flame. A dual-mirror scanning system is used to obtain equidistance between the illuminated planes. Non-uniformities in the laser sheet and laser absorption in the flame are compensated for as the position-and time-dependent OH concentration is calculated throughout the measurement volume. A method for identifying the flame front in large data sets with a single set of filtering parameter is demonstrated. The artefacts introduced by the non-instantaneous recording of the measurement volume are suppressed using linear interpolation from successive recordings in the same measurement plane. The impact from filtering and image post-processing on the achieved spatial resolution is investigated. A final spatial and temporal resolution of 3.2 x 3.2 x 0.75 lines/mm and 2 ms, respectively, are obtained in a measurement volume spanning 11 x 22 x 6 mm during a time span of 0.5 s. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Experiments in Fluids
volume
55
issue
6
pages
1764 - 1764
publisher
Springer
external identifiers
  • wos:000338322400001
  • scopus:84902039897
ISSN
1432-1114
DOI
10.1007/s00348-014-1764-y
language
English
LU publication?
yes
id
31ecbaf3-9532-4cef-afd5-48862f4129cd (old id 4608693)
date added to LUP
2014-09-04 11:31:09
date last changed
2017-09-10 03:03:06
@article{31ecbaf3-9532-4cef-afd5-48862f4129cd,
  abstract     = {Based on scanning planar laser-induced fluorescence of OH, a measurement system with the capability to record time-resolved three-dimensional image sequences of the OH concentration and the flame front is demonstrated on a premixed flame. A dual-mirror scanning system is used to obtain equidistance between the illuminated planes. Non-uniformities in the laser sheet and laser absorption in the flame are compensated for as the position-and time-dependent OH concentration is calculated throughout the measurement volume. A method for identifying the flame front in large data sets with a single set of filtering parameter is demonstrated. The artefacts introduced by the non-instantaneous recording of the measurement volume are suppressed using linear interpolation from successive recordings in the same measurement plane. The impact from filtering and image post-processing on the achieved spatial resolution is investigated. A final spatial and temporal resolution of 3.2 x 3.2 x 0.75 lines/mm and 2 ms, respectively, are obtained in a measurement volume spanning 11 x 22 x 6 mm during a time span of 0.5 s.},
  author       = {Wellander, Rikard and Richter, Mattias and Aldén, Marcus},
  issn         = {1432-1114},
  language     = {eng},
  number       = {6},
  pages        = {1764--1764},
  publisher    = {Springer},
  series       = {Experiments in Fluids},
  title        = {Time-resolved (kHz) 3D imaging of OH PLIF in a flame},
  url          = {http://dx.doi.org/10.1007/s00348-014-1764-y},
  volume       = {55},
  year         = {2014},
}