Title: Non-Darcy double diffusive mixed convection for nanofluid with Soret and Dufour effects in a lid-driven cavity

Authors: N. Nithyadevi; M. Rajarathinam

Addresses: Department of Mathematics, Bharathiar University, Coimbatore – 641 046, Tamil Nadu, India ' Department of Mathematics, Bharathiar University, Coimbatore – 641 046, Tamil Nadu, India

Abstract: Unsteady laminar double diffusive mixed convection in a two sided lid-driven cavity filled by Cu-water nanofluid with Soret and Dufour effects have been investigated numerically using the Darcy-Brinkman-Forchheimer model. Constant temperature and concentrations are imposed at the vertical walls while the horizontal walls are perfectly insulated. The finite volume method over SIMPLE algorithm is used to solve the non-dimensional governing equations. The results are presented in terms of streamlines, isotherms, isoconcentrations and heatline trajectories as well as the mid-height velocity profiles, average Nusselt number and Sherwood number graphs.

Keywords: double diffusive convection; porous medium; nanofluids; lid-driven cavity; Soret and Dufour effects; mixed convection; nanotechnology; finite volume method; FVM.

DOI: 10.1504/IJNP.2015.073724

International Journal of Nanoparticles, 2015 Vol.8 No.3/4, pp.218 - 240

Received: 25 Mar 2015
Accepted: 19 Jun 2015
Published online: 16 Dec 2015 *

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