A numerical study on the propagation of sound through capillary tubes with mean flow

Cited 34 time in webofscience Cited 0 time in scopus
  • Hit : 320
  • Download : 0
As a first step toward the acoustic analysis of catalytic converters in automotive exhaust systems, wave propagation through a capillary tube with steady flow is dealt with. Using the general formulations of conservation equations with non-isentropic conditions based on the low reduced frequency solution, the linearised governing equations are solved by the recursive use of numerical methods. No initial assumptions are imposed on the shape of axial velocity profiles and the radial velocity fluctuation is also included in the analysis. Characteristics of the forward and backward propagating acoustic waves are investigated under the influence of steady flow and the calculation is performed up to high shear wave numbers. The characteristics of hydrodynamic waves are also investigated when steady flow is present. The application limits of the previous work are demonstrated as the shear wave number increases. The numerical method is applied to the prediction of the transmission loss of a stack of capillary tubes with and without mean flow considering the effects of radial components and the calculated results agree reasonably well with experimental ones. (C) 1996 Academic Press Limited
Publisher
ACADEMIC PRESS LTD
Issue Date
1996-11
Language
English
Article Type
Article
Citation

JOURNAL OF SOUND AND VIBRATION, v.198, no.1, pp.67 - 79

ISSN
0022-460X
URI
http://hdl.handle.net/10203/76940
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 34 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0