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A method for simultaneous reconstruction of temperature and concentration distribution in gas mixtures based on acoustic tomography

  • Yan Liu*
  • , Shi Liu
  • , Jing Lei
  • , Jing Liu
  • , H. Inaki Schlaberg
  • , Yong Yan
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The acquisition of the concentration and temperature distributions in a mixed gas system plays a crucial role in real industrial applications. Different from comment measurement method, in this paper an acoustic tomography (AT) based method is developed for the simultaneous reconstruction of the concentration and temperature distributions. The proposed method includes two stages. In the first stage, the correlations of the acoustic velocity and the intensity attenuation with the temperature and concentration are investigated. Then the approach that can simultaneously compute temperature and concentration is proposed. In the second stage, in order to achieve 2D tomography, the stochastic inversion method for solving the inverse problem is developed. Numerical simulations are implemented to validate the feasibility of the proposed reconstruction method.

Original languageEnglish
Pages (from-to)597-605
Number of pages9
JournalAcoustical Physics
Volume61
Issue number5
DOIs
StatePublished - 22 Sep 2015
Externally publishedYes

Keywords

  • acoustic tomography
  • concentration distribution measurement
  • reconstruction method
  • relaxation attenuation
  • temperature distribution measurement

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