Issue 26, 2020, Issue in Progress

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

Abstract

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 + Al2O3). 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 Al2O3 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.

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

Article information

Article type
Paper
Submitted
05 Feb 2020
Accepted
28 Mar 2020
First published
17 Apr 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 15035-15043

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

H. Sadaf and S. I. Abdelsalam, RSC Adv., 2020, 10, 15035 DOI: 10.1039/D0RA01134G

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