THERMAL SCIENCE

International Scientific Journal

H. Pourmohamadian

,

Ghanbarali Sheikhzadeh

,

Alireza Aghaei

,

Hamidreza Ehteram

,

M. Adibi

INVESTIGATING THE EFFECT OF BROWNIAN MOTION MODELS ON HEAT TRANSFER AND ENTROPY GENERATION IN NANOFLUID FORCED CONVECTION

ABSTRACT
this study the influence of Brownian motion models on fluid flow, heat transfer and entropy generation in nanofluid forced convection with variable properties has been numerically inspected in a enclosure with central heat source. The governing equations were solved by finite volume method and SIMPLER algorithm. The numerical study was carried out for Reynolds numbers between 10 and 1000 and nanoparticles volume fraction between 0 and .04. The numerical results show that for all investigated models the average Nusselt number increases by nanoparticle volume fraction increment in all Reynolds number. The overall entropy generation behavior is similar to average Nusselt number variation for all inspected models. Among all analyzed models the estimation of Maxwell-Brinkman and Das-Vajjha [30] Models are mainly closed to each other.
PAPER SUBMITTED: 2016-06-23
PAPER REVISED: 2017-09-04
PAPER ACCEPTED: 2017-09-22
PUBLISHED ONLINE: 2017-10-07
DOI REFERENCE: https://doi.org/10.2298/TSCI160623199P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 2, PAGES [485 - 496]
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Investigating the effect of Brownian motion models on heat transfer and entropy generation in nanofluid forced convection

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