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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v35.i3.40
pages 258-272

A Two-Layered Suspension Flow Induced by Peristaltic Waves

Amit Medhavi
Department of Mechanical Engineering, SMS Institute of Technology, Sultanpur Road, Lucknow, India
U. K. Singh
Department of Mechanical Engineering, Kamla Nehru Institute of Technology, Sultanpur, U. P., India

Краткое описание

A two-layered suspension flow, consisting of a central layer of a particle-fluid suspension and a peripheral layer of a Newtonian viscous fluid (same as the suspending medium in the central layer), induced by sinusoidal peristaltic waves has been studies. The expressions for the velocity profiles, the pressure drop and the friction force have been obtained. The pressure drop has been shown to be increasing with the particle concentration in the core region and also with the flow rate. The magnitude of the pressure drop is found to be higher in one-layered (one-fluid) analysis than in two-layered (two-fluid) for a given value of the particle concentration and also for a given value of the flow rate. It is noticed that for small values of the flow rate, the pressure drop decreases rapidly with increasing amplitude ratio. However, this property is different for larger values of the flow rate. The friction force possesses character similar to the pressure drop (an opposite character to the pressure rise) for any given set of parameters.