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Author Azam, Mohammad ♦ Hasanuzzaman, Md. ♦ Saha, Sumon
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CHAOS THEORY ♦ CONVECTION ♦ COPPER ♦ EQUATIONS ♦ FINITE ELEMENT METHOD ♦ HARTMANN NUMBER ♦ HEAT ♦ ISOTHERMS ♦ MAGNETOHYDRODYNAMICS ♦ MIXING ♦ NANOFLUIDS ♦ NANOPARTICLES ♦ NUSSELT NUMBER ♦ REYNOLDS NUMBER ♦ RICHARDSON NUMBER ♦ TWO-DIMENSIONAL CALCULATIONS ♦ TWO-DIMENSIONAL SYSTEMS ♦ VELOCITY ♦ WATER
Abstract The present study investigates the thermal mixing scenarios of steady magneto-hydrodynamic (MHD) mixed convection in a two-dimensional lid-driven trapezoidal cavity filled with Cu-water nanofluid. The top wall of the cavity slides with a uniform velocity from left to right direction, while the other walls are fixed. The bottom wall is kept with a constant higher temperature than the top one. The governing mass, momentum and energy equations are expressed in non-dimensional forms and Galerkin finite element method has been employed to solve these equations. Special attention is paid on investigating the onset of transition from laminar to chaos at pure mixed convection case. Hence, the computations are carried out for a wide range of Reynolds numbers (Re = 0.1 − 400) and Grashof numbers (Gr = 10{sup −2} − 1.6 × 10{sup 5}) at unity Richardson number and fixed Hartmann number (Ha = 10). The variation of average Nusselt number of the bottom heated wall indicates the influence of governing parameters (Re and Gr) on heat transfer characteristics. The results are presented and explained through the visualisation of isotherms, streamlines and heatlines.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-07-12
Publisher Place United States
Volume Number 1754
Issue Number 1


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