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Effects of an endoscope on peristaltic flow of a micropolar fluid

  • Quaid-I-Azam University

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

This paper describes the incompressible flow of a micropolar fluid through a gap between the concentric uniform tubes. The inner tube being rigid tube and the outer tube has a periodic peristaltic wave travelling down its wall. Mathematical modelling has been carried out for long wavelength approximation. Analytical solutions for the axial velocity and axial pressure gradient have been obtained in closed form. The effects of various emerging parameters on the pressure rise and frictional forces have been discussed. For the present analysis of the endoscope, the correct formula of the friction force per wavelength has been derived. The corresponding results for viscous fluid can be deduced as a limiting case of the present analysis.

Original languageEnglish
Pages (from-to)721-733
Number of pages13
JournalMathematical and Computer Modelling
Volume48
Issue number5-6
DOIs
StatePublished - Sep 2008
Externally publishedYes

Keywords

  • Endoscope
  • Exact solution
  • Long wavelength
  • Micropolar fluid
  • Peristalsis

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