One- and two-dimensional tikhonov-regularized tomography for axisymmetric flames

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Experiments relying on tomographic reconstruction of soot emission and absorption offer relatively simple and inexpensive ways to image both soot concentration and temperature in axisymmetric flames. Because the tomography problem is mathematically ill-posed, however, special measures have to be taken to ensure an accurate solution. This paper describes the application of one such measure, Tikhonov regularization. Its performance is evaluated for a one-dimensional test problem, at different flame heights, resolutions, and noise levels. Finally, Tikhonov regularization for the two-dimensional problem is formulated and discussed.

Details

Authors
  • Emil O Åkesson
  • K.J. Daun
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics

Keywords

  • Tikhonov regularization, Soot concentration, Axisymmetric flames, Soot emission
Original languageEnglish
Title of host publicationCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics
Pages2030-2046
Volume3
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
Event37th AIAA Fluid Dynamics Conference - Miami, FL, United States
Duration: 2007 Jun 252007 Jun 28

Publication series

Name
Volume3

Conference

Conference37th AIAA Fluid Dynamics Conference
CountryUnited States
CityMiami, FL
Period2007/06/252007/06/28