Acta Mechanica

, Volume 49, Issue 3–4, pp 201–208 | Cite as

Unsteady flow with attenuation in a fluid filled elastic tube with a stenosis

  • A. Ramachandra Rao
Contributed Papers


An equation governing the excess pressure has been derived, for an axially tethered and stenosed elastic tube filled with viscous liquid, by introducing the elasticity of the tube through pressure-area relation. This equation is solved numerically for large Womersley parameter and the results are presented for different types of pressure-radius relations and geometries by prescribing an outgoing wave suffering attenuation at some axial point of the tube. For a locally constricted tube it is observed that the pressure oscillates more and generates sound on the down stream side of the constriction.


Attenuation Dynamical System Fluid Dynamics Transport Phenomenon Unsteady Flow 
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Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • A. Ramachandra Rao
    • 1
  1. 1.Department of Applied MathematicsIndian Institute of ScienceBangaloreIndia

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