Paper Title:
Acoustic Modes in the Annular Duct with Uniform Mean Flow
  Abstract

There are many benchmark problems in computational aeroacoustics (CAA) and acoustic mode in the annular duct with uniform mean flow is a problem of this kind. The energy relation of the duct mode is deduced from the governing equation, Euler equations in this paper. If the sound power level, angular frequency, azimuthal mode number and radial mode number are given, the acoustic mode in the annular duct can be expressed explicitly by the deduced results. The simulation of two different cases shows the propagation of a single acoustic mode in annular duct pictorially.

  Info
Periodical
Edited by
Zeng Zhu
Pages
554-558
DOI
10.4028/www.scientific.net/AMR.214.554
Citation
Z. X. Liu, "Acoustic Modes in the Annular Duct with Uniform Mean Flow", Advanced Materials Research, Vol. 214, pp. 554-558, 2011
Online since
February 2011
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Price
$32.00
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