Laminar forced convection and entropy generation of ZnO-ethylene glycol nanofluid flow through square microchannel with using two-phase Eulerian-Eulerian model


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Uysal C. , Arslan K. , Kurt H.

Journal of Applied Fluid Mechanics, cilt.12, ss.1-10, 2019 (SCI Expanded İndekslerine Giren Dergi)

  • Cilt numarası: 12 Konu: 1
  • Basım Tarihi: 2019
  • Doi Numarası: 10.29252/jafm.75.253.28744
  • Dergi Adı: Journal of Applied Fluid Mechanics
  • Sayfa Sayısı: ss.1-10

Özet

In this paper, convective heat transfer and entropy generation of ZnO-EG nanofluid flow through a square microchannel are numerically investigated. Flow is modelled by using Eulerian-Eulerian two phase flow model. Nanoparticle volume fraction of ZnO-EG nanofluid ranged between %1.0 and %4.0. As a result, it is found that the convective heat transfer coefficient of flow increased from 9718.15 W/m(2) K to 23010.79 W/m(2) K when 4.0% ZnO nanoparticle addition to pure EG at Re=100. Total entropy generation of ZnO-EG nanofluid decreases with increase in nanoparticle volume fraction of ZnO-EG nanofluid. It is also observed that the Bejan number decreases with increase in nanoparticle volume fraction of ZnO-EG nanofluid.