THERMAL SCIENCE

International Scientific Journal

Mohammad Javad Maghrebi

,

Taher Armaghani

,

Farhad Talebi

EFFECTS OF NANOPARTICLE VOLUME FRACTION IN HYDRODYNAMIC AND THERMAL CHARACTERISTICS OF FORCED PLANE JET

ABSTRACT
The effects of nanoparticle volume fraction in hydrodynamic and thermal characteristics of an incompressible forced 2-D plane jet flow are investigated. Direct Numerical Simulation (DNS) of a two dimensional incompressible plane forced jet flow for two nanofluids has been performed. The base fluid is water and the nanoparticles are Al O ,CuO 2 3 . The numerical simulation is carried out for the solid volume fraction between 0 to 4%. The results for both nanofluids indicate that any increase in the solid volume fraction decreases the amplitude of temperature, velocity time histories, the turbulent intensities and that of the Reynolds stresses. The results for both two nanoparticles also indicate that with any increase in nanoparticle volume fraction, the velocity amplitude of velocity time history, the turbulent intensities and Reynolds stress in 2 3 Al O -water are greater than that ofCuO-water nanofluid.
KEYWORDS
incompressible plane jet, nanoparticle volume fraction, velocity time history, temperature time history, turbulent intensities, Reynolds stress
PAPER SUBMITTED: 2010-10-11
PAPER REVISED: 2012-01-16
PAPER ACCEPTED: 2012-02-09
DOI REFERENCE: https://doi.org/10.2298/TSCI101011022M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 2, PAGES [455 - 468]
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Effects of nanoparticle volume fraction in hydrodynamic and thermal characteristics of forced plane jet

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