Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus

This study looks at the influence of an endoscope on the peristaltic flow of a particle–fluid suspension (as blood model) through tubes. A long wavelength approximation through a uniform and non-uniform infinite annulus filled with an incompressible viscous and Newtonian fluid mixed with rigid spher...

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Main Authors: K. S. Mekheimer, Y. Abd Elmaboud
Format: Article
Language:English
Published: Wiley 2008-01-01
Series:Applied Bionics and Biomechanics
Online Access:http://dx.doi.org/10.1080/11762320802376183
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author K. S. Mekheimer
Y. Abd Elmaboud
author_facet K. S. Mekheimer
Y. Abd Elmaboud
author_sort K. S. Mekheimer
collection DOAJ
description This study looks at the influence of an endoscope on the peristaltic flow of a particle–fluid suspension (as blood model) through tubes. A long wavelength approximation through a uniform and non-uniform infinite annulus filled with an incompressible viscous and Newtonian fluid mixed with rigid spherical particles of identical size is investigated theoretically. The inner tube is uniform, rigid and moving with a constant velocity V0, whereas the outer non-uniform tube has a sinusoidal wave travelling down its wall. The axial velocity of the fluid phase uf, particulate phase up and the pressure gradients have been obtained in terms of the dimensionless flow rate Q, the amplitude ratio ɸ, particle concentration C, the velocity constant V0 and the radius ratio ϵ (the ratio between the radius of the inner tube and the radius of the outer one at the inlet). Numerical calculations for various values of the physical parameters of interest are carried out for the pressure rise and the friction force on the inner and the outer tubes.
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spelling doaj-art-56f432fec9764237b29601070f2a582b2025-02-03T00:59:01ZengWileyApplied Bionics and Biomechanics1176-23221754-21032008-01-0152475710.1080/11762320802376183Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform AnnulusK. S. Mekheimer0Y. Abd Elmaboud1Mathematics Department, Al-Azhar University, Nasr City, Cairo, EgyptMathematics Department, Al-Azhar University (Assiut Branch), Assiut, EgyptThis study looks at the influence of an endoscope on the peristaltic flow of a particle–fluid suspension (as blood model) through tubes. A long wavelength approximation through a uniform and non-uniform infinite annulus filled with an incompressible viscous and Newtonian fluid mixed with rigid spherical particles of identical size is investigated theoretically. The inner tube is uniform, rigid and moving with a constant velocity V0, whereas the outer non-uniform tube has a sinusoidal wave travelling down its wall. The axial velocity of the fluid phase uf, particulate phase up and the pressure gradients have been obtained in terms of the dimensionless flow rate Q, the amplitude ratio ɸ, particle concentration C, the velocity constant V0 and the radius ratio ϵ (the ratio between the radius of the inner tube and the radius of the outer one at the inlet). Numerical calculations for various values of the physical parameters of interest are carried out for the pressure rise and the friction force on the inner and the outer tubes.http://dx.doi.org/10.1080/11762320802376183
spellingShingle K. S. Mekheimer
Y. Abd Elmaboud
Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
Applied Bionics and Biomechanics
title Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
title_full Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
title_fullStr Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
title_full_unstemmed Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
title_short Peristaltic Transport of a Particle–Fluid Suspension through a Uniform and Non-Uniform Annulus
title_sort peristaltic transport of a particle fluid suspension through a uniform and non uniform annulus
url http://dx.doi.org/10.1080/11762320802376183
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AT yabdelmaboud peristaltictransportofaparticlefluidsuspensionthroughauniformandnonuniformannulus