Adverse effects of a hybrid nanofluid in a wavy non-uniform annulus with convective boundary conditions

The presented investigation theoretically studies the physical characteristics of a two-dimensional incompressible hybrid nanofluid in a non-uniform annulus where the boundaries are flexible. A mixed convective peristaltic mechanism is implemented to model blood-based nanofluids using two different...

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Bibliographic Details
Published in:RSC advances 2020-04, Vol.1 (26), p.1535-1543
Main Authors: Sadaf, Hina, Abdelsalam, Sara I
Format: Article
Language:English
Subjects:
Aluminum oxide
Annuli
Blood
Boundary conditions
Chemistry
Computational fluid dynamics
Heat sources
Hemodynamics
Nanofluids
Nanoparticles
Physical properties
Platelets
Silver
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Summary:The presented investigation theoretically studies the physical characteristics of a two-dimensional incompressible hybrid nanofluid in a non-uniform annulus where the boundaries are flexible. A mixed convective peristaltic mechanism is implemented to model blood-based nanofluids using two different nanoparticles (Ag + Al 2 O 3 ). Convective boundary conditions are employed and different forms of nanoparticles are discussed (bricks, cylinders and platelets). The problem is shortened by engaging a lubrication method. Exact expressions for the temperature of cumulative heat source/sink standards, hemodynamic velocity, pressure gradient and streamlines of different shapes of nanoparticles are obtained. Special cases of pure blood and the Al 2 O 3 nanofluid of our model are derived. A comparison is set between nanofluids and hybrid nanofluids from which we observed variations in heat transfer rate in different regions due to the oscillatory nature of the waves. The current model has the potential to be useful for applications related to the metabolic structures that play a vital role in heat sources inside the human body. The presented investigation theoretically studies the physical characteristics of a two-dimensional incompressible hybrid nanofluid in a non-uniform annulus where the boundaries are flexible.
ISSN:2046-2069
2046-2069
DOI:10.1039/d0ra01134g