Second Law Analysis in Mixed Convection Through an Inclined Porous Channel

Tayari, Amel; Brahim, Ammar Ben; Magherbi, Mourad

doi:10.1007/s10765-015-1925-0

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…The entropy generation diminishes with the rising values of Ri numbers and when the solid volume fraction rises. Taghizadeh and Asaditaheri (2018) and Tayari et al (2015) studied the Dufour and Soret effects over entropy generation for double-diffusive convection in a fluid saturating a square enclosure. Hayat et al (2018) numerically scrutinized the entropy generation and convective heat transport inside an inclined lid-driven cavity through a circular porous cylinder situated at the center.…”

Section: Introductionmentioning

confidence: 99%

Entropy generation and heat transport of Cu–water nanoliquid in porous lid-driven cavity through magnetic field

Marzougui

Mebarek‐Oudina

Magherbi³

et al. 2021

HFF

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Purpose The purpose of this paper is to investigate the effects of Ha and the Nanoparticles (NP) volume fraction over the irreversibility and heat transport in Darcy–Forchheimer nanofluid saturated lid-driven porous medium. Design/methodology/approach The present paper highlights entropy generation because of mixed convection for a lid-driven porous enclosure filled through a nanoliquid and submitted to a uniform magnetic field. The analysis is achieved using Darcy–Brinkman–Forchheimer technique. The set of partial differential equations governing the considered system was numerically solved using the finite element method. Findings The main observations are as follows. The results indicate that the movement of horizontal wall is an important factor for the entropy generation inside the porous cavity filled through Cu–water nanoliquid. The variation of the thermal entropy generation is linear through NPs volume fraction. The total entropy generation reduces when the Darcy, Hartmann and the nanoparticle volume fraction increase. The porous media and magnetic field effects reduce the total entropy generation. Practical implications Interest in studying thermal interactions by convective flow within a saturating porous medium has many fundamental considerations and has received extensive consideration in the literature because of its usefulness in a large variety of engineering applications, such as the energy storage and solar collectors, crystal growth, food processing, nuclear reactors and cooling of electronic devices, etc. Originality/value By examining the literature, the authors found that little attention has been paid to entropy generation encountered during convection of nanofluids. Hence, this work aims to numerically study entropy generation and heat transport in a lid-driven porous enclosure filled with a nanoliquid.

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Section: Introductionmentioning

confidence: 99%