THERMAL SCIENCE

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Authors of this Paper

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Yaowen Xia

,

Juan Chen

DIRECT NUMERICAL SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION IN A CLOSED MIXTURE CAVITY HEATED FROM BELOW

ABSTRACT
Double diffusive natural convection is one of the most widely used study subjects in heat and mass transfer. In this present study, double diffusive natural convection heating from below the wall in a closed cavity was studied with direct numerical simulation method. The flow characteristics are presented as isotherms, iso concentrations, and streamlines. The results show that RaT has signification strong effects on average Nusselt number, with a more considerable RaT, the value of Nusselt number more higher. These were also found to increase with increasing buoyancy ratio for adding flow and decrease as buoyancy ratio decreases for opposing flows
KEYWORDS
double diffusive natural convection, heat and mass transfer, Buoyancy ratio, direct numerical simulation
PAPER SUBMITTED: 2022-11-07
PAPER REVISED: 2023-01-13
PAPER ACCEPTED: 2023-02-15
PUBLISHED ONLINE: 2023-04-22
DOI REFERENCE: https://doi.org/10.2298/TSCI221107069X
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 5, PAGES [4261 - 4275]
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Direct numerical simulation of double diffusive natural convection in a closed mixture cavity heated from below

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