Thermoacoustic waves along the critical isochore

B. Shen, P. Zhang

研究成果: ジャーナルへの寄稿記事

18 引用 (Scopus)

抄録

Near the liquid-gas critical point, thermal disturbances can generate sounds. We study the acoustic emission over four decades of reduced temperatures [defined as ε=(T-Tc)/Tc, with Tc the critical temperature] along the critical isochore, under linear and nonlinear temperature perturbations, respectively. We identify various thermoacoustic behaviors by numerically solving the governing equations. It is shown that a homogeneous thermoacoustic-wave pattern dominates in the linear case, largely independent of ε; whereas under the nonlinear perturbation, variation in ε could lead to severe wavefront deformation. The strong nonlinear effect is found to be of a transient nature because, in due time, both cases tend to converge in terms of the energy yield of the adiabatic process.

元の言語英語
記事番号011115
ジャーナルPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
83
発行部数1
DOI
出版物ステータス出版済み - 1 21 2011
外部発表Yes

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perturbation
Acoustic Emission
Nonlinear Perturbations
acoustic emission
Nonlinear Effects
Critical Temperature
Wave Front
Governing equation
Critical point
critical point
critical temperature
disturbances
Disturbance
Liquid
Tend
Perturbation
Converge
temperature
acoustics
liquids

All Science Journal Classification (ASJC) codes

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

これを引用

Thermoacoustic waves along the critical isochore. / Shen, B.; Zhang, P.

:: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 巻 83, 番号 1, 011115, 21.01.2011.

研究成果: ジャーナルへの寄稿記事

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