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

Rao, A Ramachandra (1983) Unsteady flow with attenuation in a fluid filled elastic tube with a stenosis. In: Acta Mechanica, 49 (3-4). pp. 201-208.

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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.

Item Type: Journal Article
Publication: Acta Mechanica
Publisher: Springer Wien
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Physical & Mathematical Sciences > Mathematics
Date Deposited: 18 Nov 2009 10:19
Last Modified: 19 Sep 2010 05:31
URI: http://eprints.iisc.ac.in/id/eprint/20168

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