Heat and Mass Transfer Research Journal (HMTRJ)

Research Article

Effect of Reynold’s Number for Mixed Convection Flow of Nanofluid in a Double Lid Driven Cavity with Heat Generating Obstacle

Salma Parvin¹, Ayesha Siddiqua^1,2and Md. Elias¹

¹Department of Mathematics, Bangladesh University of Engineering & Technology, Dhaka-1000, Bangladesh

²Department of Mathematics, American International University-Bangladesh, Banani, Dhaka-1213, Bangladesh

Submitted: November 3, 2017; Revised: December 27, 2017; Accepted: December 30, 2017

Abstract

Based on heatline approach, heat transfer characteristics of nanofluid inside a double lid driven cavity with heat generating obstacle is analyzed numerically. The operational nanofluid is chosen as water-alumina nanofluid. The governing differential equations of mass, momentum and energy are solved by using Galerkin weighted residual finite element method. The behavior of the fluid in the ranges of Reynolds number Re (20 - 150) is portrayed. Numerical results are presented in terms of isotherms, stream lines, heat lines, average Nusselt number and average temperature. Results demonstrate that both the flow and thermal fields are strongly influenced by the mentioned parameter.

Keywords

Heatline; solid volume fraction; nanofluid; Reynold’s number; lid driven cavity.

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