Peristaltic pumping in a circular tube in the presence of an eccentric catheter

Adabala, Ramachandra Rao and Srinivasan, Usha (1995) Peristaltic pumping in a circular tube in the presence of an eccentric catheter. In: Journal of Biomechanical Engineering, 117 (4). pp. 448-454.

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Abstract

The influence of an eccentrically inserted catheter on the peristaltic pumping in a tube is investigated under long wavelength, low Reynolds number assumptions. The radially asymmetric deformation of the wall arising through an eccentrically inserted catheter is taken into consideration by choosing an appropriate bipolar coordinate system. The effect of the position and size of the catheter on pumping characteristics is studied. The best performance of pumping is noticed at a certain position of the catheter. The size of the catheter, when placed eccentrically, alters the pressure signature significantly inside the bolus, unlike the concentric case discussed by Lykoudis and Roos (1971). Further, the maximum pressure rise in one period of the peristaltic wave is observed to decrease with an increase in the eccentricity.

Item Type:	Journal Article
Publication:	Journal of Biomechanical Engineering
Publisher:	The American Society of Mechanical Engineers
Additional Information:	Copyright of this article belongs to The American Society of Mechanical Engineers.
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	23 May 2011 10:05
Last Modified:	28 Jun 2011 12:28
URI:	http://eprints.iisc.ac.in/id/eprint/37850

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