Mechanical efficiency and reflux of peristaltic pumping through a finite length vessel

International Journal of Applied Mathematics and Computation

S. K. Pandey¹  Dharmendra Tripathi² 

[1] M. K. Chaube$$;Department of Applied Mathematics, IT, BHU$$

关键词: Peristalsis;    Oesophagus;    Newtonian fluid;    Mechanical efficiency;    Reflux.;   

DOI  :  10.0000/ijamc.2010.2.4.84

来源: PSIT Kanpur

【 摘 要 】

This paper is aimed at studying mechanical efficiency and reflux of unsteady peristaltic pumping through finite length vessels. Expressions for the axial and transverse velocities have been derived for creeping flow. The wall equations of vessels have been so assumed that they can find application for flows in oesophagus and in pumps with similar wall vibrations. The pressure distribution and local wall shear stress for free pumping have been studied in the laboratory frame of reference. It is observed during temporal examination that pressure and local wall shear stress distributions for channel and tubular flows are qualitatively similar but quantitatively quite different. Mechanical efficiency of peristaltic pump for tubular flow is larger than channel flow. Tubular flow is more prone to the occurrence of reflux.

【 授权许可】

Unknown