On Instability of Acoustic Waves Propagating in Stratified Vortical Flows On Instability of Acoustic Waves Propagating in Stratified Vortical Flows

Abstract

The propagation of sound waves in a finite vortex is investigated by numerically solving the linearized Euler equations in two dimensions. Two types of vortices are considered : homentropic, when the entropy is uniformly distributed in space, and non-homentropic, or entropy stratified, when it is distributed non-uniformly. In the latter case, the results reveal instability of the perturbation field, which is caused by entropy-rotational waves excited in the vortex region by incident sound waves.

Journal

JSME international journal. Ser. B, Fluids and thermal engineering   [List of Volumes]

JSME international journal. Ser. B, Fluids and thermal engineering 45(1), 79-84, 2002-02-15  [Table of Contents]

The Japan Society of Mechanical Engineers

References:  10

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Codes

  • NII Article ID (NAID) :
    110003479012
  • NII NACSIS-CAT ID (NCID) :
    AA10888815
  • Text Lang :
    ENG
  • Article Type :
    ART
  • ISSN :
    13408054
  • NDL Article ID :
    6072438
  • NDL Source Classification :
    ZN11(科学技術--機械工学・工業)
  • NDL Call No. :
    Z53-Y271
  • DOI :
    10.1299/jsmeb.45.79
  • Databases :
    CJP  NDL  NII-ELS  IR  J-STAGE