Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2002.05a
  • /
  • Pages.1026-1031
  • /
  • 2002
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Acoustic Analysis of a Duct with Mean Flow by Use of FEM

유한요소법을 이용한 유체속도가 고려된 덕트의 음향특성 해석

  • 서영수 (부산대학교 대학원 기계설계공학과) ;
  • 정의봉 (부산대학교 기계공학) ;
  • 윤상돈 (부산대학교 대학원 기계설계공학과)
  • Published : 2002.05.01
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Abstract

This paper shows the effect of mean flow in duct. The potential equation of duct with mean flow is obtained. A finite element method(FEM) is used to predict acoustic performance of duct with mean flow. The formulation of the finite element method is derived for duct taking into consideration of the convective effect of mean flow. A simple duct, simple expansion chamber and a duct with resonator are implemented to show the effects of the mean flow.

Keywords