Open AccessEntropy generation of zirconia-water nanofluid flow through rectangular micro-channel
Author(s) -
Cüneyt Uysal,
Kamil Arslan,
Hüseyin Kurt
Publication year - 2018
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci18s5395u
Subject(s) - nanofluid , nusselt number , laminar flow , materials science , bejan number , heat transfer , mechanics , reynolds number , heat flux , thermodynamics , volume fraction , physics , composite material , turbulence
The fluid flow and heat transfer characteristics and entropy generation of zirconia, ZrO2-water, nanofluid flow through a rectangular micro-channel are numerically investigated. The flow is considered under single-phase 3-D steady-state incompressible laminar flow conditions. The constant heat flux is applied to the bottom surface of micro-channel. The finite volume method is used to discretize the governing equations. As a result, the average Nusselt number decreases with increasing nanoparticle volume fraction, while the average Darcy friction factor is not affected. Moreover, the total entropy generation decreases with increase in nanoparticle volume fraction, while the Bejan number is almost not affected.