@Article{hmt.7.10,
AUTHOR = {A. Vijayalakshmi, S. Srinivas},
TITLE = {ASYMMETRIC FLOW OF A NANOFLUID BETWEEN EXPANDING OR  CONTRACTING PERMEABLE WALLS WITH THERMAL RADIATION},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {7},
YEAR = {2016},
NUMBER = {1},
PAGES = {1--11},
URL = {http://www.techscience.com/fhmt/v7n1/54692},
ISSN = {2151-8629},
ABSTRACT = {In the present study, the flow and heat transfer characteristics of a nanofluid in an expanding or contracting porous channel with different 
permeabilities in presence of thermal radiation are investigated. Analytical solutions for the flow variables are obtained by employing homotopy 
analysis method (HAM). Maxwell-Garnetts and Brinkman models are considered to calculate the thermal conductivity and the viscosity of 
nanofluid. In this investigation, we considered water and ethylene glycol as base fluids and silver (
<i>Ag</i>
), copper (
<i>Cu</i>
), titanium dioxide (
<i>TiO<sub>2</sub></i>
) and 
alumina (
<i>Al<sub>2</sub>O<sub>3</sub></i>
) as nanoparticles. The effects of various emerging parameters on axial velocity, temperature, shear stress and Nusselt number 
distributions have been discussed. The results of present study are compared with the numerical solutions obtained by shooting technique along with 
Runge-Kutta fourth order scheme. We found that there is a good agreement between the analytical and the numerical solutions.},
DOI = {10.5098/hmt.7.10}
}