Thermoacoustic wave propagation and reflection near the liquid-gas critical point

P. Zhang, Biao Shen

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We study the thermoacoustic wave propagation and reflection near the liquid-gas critical point. Specifically, we perform a numerical investigation of the acoustic responses in a near-critical fluid to thermal perturbations based on the same setup of a recent ultrasensitive interferometry measurement in CO2. The numerical results agree well with the experimental data. Different features regarding the reflection pattern of thermoacoustic waves near the critical point under pulse perturbations are revealed by the proper inclusion of the critically diverging bulk viscosity.

Original languageEnglish
Article number060103
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume79
Issue number6
DOIs
Publication statusPublished - Jun 18 2009
Externally publishedYes

Fingerprint

wave reflection
Wave Propagation
wave propagation
Critical point
critical point
Liquid
perturbation
liquids
gases
Bulk Viscosity
Perturbation
interferometry
inclusions
Interferometry
viscosity
Numerical Investigation
acoustics
fluids
Acoustics
Inclusion

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

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