In this study, hydromagnetic pulsatile flow of a nanofluid between two parallel walls with thermal radiation is investigated. Water is considered as base fluid and Ag, CuO, Al 2 O 3 , TiO 2 are considered as nanoparticles. Brinkman and Maxwell Garnetts models are considered. Perturbation technique is employed to obtain the solution of the governing system. The effects of nanoparticle volume fraction, magnetic parameter, Darcy number and thermal radiation on flow variables have been discussed in detail. © 2019 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Nanoscience and Nanotechnology (ICNAN'16)

Vijayalakshmi A

Computer Science

School of Computer Science and Engineering

Chennai Campus

Srinivas Koppu

Department of Smart Computing

School of Information Technology and Engineering

Vellore Campus

Subramanyam Reddy A

Department of Mathematics

School of Advanced Sciences

Badeti Satyanarayana

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

&nbsp;

&nbsp;

VIT University

Materials Today: Proceedings

AbstractThe present study investigates the hydromagnetic pulsating nanofluid flow in a porous channel with thermal radiation. In this work, we considered water as the base fluid and silver (Ag), copper (Cu), alumina (Al2O3) and titanium dioxide (TiO2) as nanoparticles. The Maxwell-Garnetts and Brinkman models are used to evaluate the effective thermal conductivity and viscosity of the nanofluid. The governing equations are solved analytically and the influence of various parameters on velocity, temperature and heat transfer rate has been discussed through graphical results. From the results, it is found that the rate of heat transfer enhances with an increase of nanoparticle volume fraction. Further, the heat transfer rate is higher for silver nanoparticles as compared with copper, alumina and titanium dioxide.

Journal of Mechanics

A Study on Hydromagnetic Pulsating Flow of a Nanofluid in a Porous Channel With Thermal Radiation

Fulltext

Frontiers in Heat and Mass Transfer

ASYMMETRIC FLOW OF A NANOFLUID BETWEEN EXPANDING OR CONTRACTING PERMEABLE WALLS WITH THERMAL RADIATION

The present study investigates the hydromagnetic flow of a nanofluid in a two-dimensional porous channels between slowly expanding or contracting walls. Assuming symmetric injection (or suction) along the uniformly expanding porous walls and using a similarity transformation, the governing flow equations are reduced to nonlinear ordinary differential equations. The resulting equations are then solved analytically by using the homotopy analysis method (HAM). The convergence of the obtained series solutions is analyzed through the minimization of the averaged square residual error. A comparison between analytical and numerical solutions is presented for the validation in both graphical and tabular forms. The results obtained by HAM are in very good agreement with numerical solutions obtained by the shooting method coupled with a Runge-Kutta scheme. The effects of various physical parameters such as wall expansion ratio, Brownian motion parameter, thermophoresis parameter, and Lewis number on flow variables are discussed. Analysis shows that for the case of contracting walls, the temperature increases for a given increase in Brownian motion parameter, and the thermophoresis parameter. In addition, the nanoparticle concentration increases with an increase in Brownian motion parameter and Lewis number. © 2014 by Begell House, Inc.

Journal of Porous Media

HYDROMAGNETIC FLOW OF A NANOFLUID IN A POROUS CHANNEL WITH EXPANDING OR CONTRACTING WALLS

International Journal of Applied and Computational Mathematics

EFGM Simulation of Pulsating Doublediffusive Effect on Transpiration Cooling in Nanofluid Filled Wavy Channel

Heat and Mass Transfer

Local convective heat transfer coefficient and friction factor of CuO/water nanofluid in a microchannel heat sink

Hydromagnetic pulsating flow of nanofluid between two parallel walls with porous medium

Journal	Data powered by TypesetMaterials Today: Proceedings
Publisher	Data powered by TypesetElsevier BV
ISSN	2214-7853
Open Access	No