Stability analysis of thermoacoustic oscillations in the Sondhauss tube

DOI

Bibliographic Information

Other Title
  • ソンドハウス管における熱音響振動の安定性解析

Description

If an axial temperature gradient is imposed on a tube wall properly, a gas column in the tube begins to oscillate spontaneously. This is a mutual energy conversion called thermoacoustic effect, which can be applied as heat engine. It is carried out to analyze stability of self-excited thermoacoustic oscillation in a so-called Sondhauss tube: Helmholtz resonator that is imposed temperature gradient on its throat part. Based on boundary-layer theory, frequency equations of oscillation are derived in the framework of the linear sound wave. An idea of the fractional derivatives and renormalization are used in the process of derivation. As a result, it was found out that attaching a bulb remarkably decreases the critical temperature ratio and that the higher mode of oscillation appears.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205591936896
  • NII Article ID
    130004604057
  • DOI
    10.11345/japannctam.57.0.255.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top