Numerical study of transient free convective mass transfer in a Walters-B viscoelastic flow with wall suction

CHANG, T.-B., MEHMOOD, A., BEG, O. A., NARAHARI, M., ISLAM, M. N. and AMEEN, F. (2011). Numerical study of transient free convective mass transfer in a Walters-B viscoelastic flow with wall suction. Communications in Nonlinear Science and Numerical Simulation, 16 (1), p. 216.

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Abstract

A transient model for the free convective, nonlinear, steady, laminar flow and mass transfer in a viscoelastic fluid from a vertical porous plate is presented. The Walters-B liquid model is employed which introduces supplementary terms into the momentum conservation equation. The transformed conservation equations are solved using the finite difference method (FDM). The influence of viscoelasticity parameter (Γ), species Grashof number (Gc), Schmidt number (Sc), distance (Y) and time (t) on the velocity (U) and also concentration distribution (C) is studied graphically. Velocity is found to increase with a rise in viscoelasticity parameter (Γ) with both time and distances close to the plate surface. An increase in Schmidt number is observed to significantly decrease both velocity and concentration in time and also with separation from the plate. Increasing species Grashof number boosts the flow velocity through all time and causes a significant rise primarily near the plate surface. The study has applications in polymer materials processing.

Item Type:	Article
Research Institute, Centre or Group:	Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group
Identification Number:	10.1016/j.cnsns.2010.02.018
Depositing User:	Ann Betterton
Date Deposited:	10 Sep 2010 16:34
Last Modified:	23 Sep 2010 12:07
URI:	http://shura.shu.ac.uk/id/eprint/2498

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