Fully Developed Mixed Convection in a Non-Darcy Porous Medium Saturated by a Nanofluid

Trîmbiţaş, Radu T.; Groşan, Teodor

doi:10.1615/jpormedia.v20.i4.40

Cited by 7 publications

(2 citation statements)

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“…It is worth mentioning that many references on nanofluids can be found in the books by Das et al (2008), Nield andBejan (2013), andShenoy et al (2016) and in the review papers by Buongiorno (2006); Kakaç and Pramuanjaroenkij (2009); Mahian et al (2013); Sheikholeslami and Ganji (2016), etc. Moreover, some interesting results were obtained in papers by Mansour et al (2014); Sabour et al (2017); Trimbitas and Gros an (2017).…”

Section: Introductionmentioning

confidence: 94%

The influence of thermal radiation on unsteady free convection in inclined enclosures filled by a nanofluid with sinusoidal boundary conditions

Sheremet

Pop

Roşca

2018

HFF

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Purpose The purpose of this study is a numerical analysis of transient natural convection in an inclined square cavity filled with an alumina-water nanofluid under the effects of sinusoidal wall temperature and thermal radiation by using a single-phase nanofluid model with empirical correlations for effective viscosity and thermal conductivity. Design/methodology/approach The domain of interest includes the nanofluid-filled cavity with a sinusoidal temperature distribution along the left vertical wall. Horizontal walls are supposed to be adiabatic, while right vertical wall is kept at constant low temperature. Temperature of left wall varies sinusoidally along y-coordinate. It is assumed in the analysis that the thermophysical properties of the fluid are independent of temperature and the flow is laminar. The governing equations have been discretized using the finite difference method with the uniform grid. Simulations have been carried out for different values of the Rayleigh number, cavity inclination angle, nanoparticles volume fraction and radiation parameter. Findings It has been found that a growth of radiation parameter leads to the heat transfer enhancement and convective flow intensification. At the same time, an inclusion of nanoparticles illustrates a reduction in the average Nusselt number and fluid flow rate. Originality/value The originality of this work is to analyze unsteady natural convection in a square cavity filled with a water-based nanofluid in the presence of a sinusoidal temperature distribution along one wall. The results would benefit scientists and engineers to become familiar with the analysis of convective heat and mass transfer in nanofluids and the way to predict the properties of nanofluid convective flow in advanced technical systems, in industrial sectors including transportation, power generation, chemical sectors, electronics, etc.

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Section: Introductionmentioning

confidence: 94%

The influence of thermal radiation on unsteady free convection in inclined enclosures filled by a nanofluid with sinusoidal boundary conditions

Sheremet

Pop

Roşca

2018

HFF

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“…They examined for both opposing and assisting flows and discover the interesting part that the augmented hybrid nanoparticles slow down the separation of boundary layer. Trimbitas and Grosan [30] examined the highly formed mixed convection type flows in a non-Darcy porous media that was saturated with a nanofluid. Recently, the flow pattern in non-Darcy mixed convection has been studied by El-dawy and Gorla [31].…”

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confidence: 99%

Comparative Study of Mixed Convection Flow of Mono/Hybrid Nanofluid within a Porous Medium

Jena¹,

Mishra²

2023

Preprint

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The purpose of the present research paper, is to carry out a comparative study for mixed convection flow of mono and hybrid nanofluids within the porous medium in the presence of magnetic field and melting effects. The Darcy-Forchheimer model along-with single phase nanofluid model is used to propose the mathematical model of the envisioned problem. The PDEs governing the problem are transformed into a non-dimensional ODEs using suitable similarity variables. The numerical solution of the problem is obtained using the MATLAB package bvp4c and the results showing the effect of various flow controlling parameters on the flow field is presented graphically. The investigation revealed that the heat transfer rate is increases with melting parameter and nanofluid produces more skin friction comparative to hybrid nanofluid. The findings have the applications involving oil flow filtration, electronic cooling equipment, etc.

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Applications of nanofluids in porous medium

Khanafer

Vafai

2018

J Therm Anal Calorim

129

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Fully Developed Mixed Convection in a Non-Darcy Porous Medium Saturated by a Nanofluid

Cited by 7 publications

References 0 publications

The influence of thermal radiation on unsteady free convection in inclined enclosures filled by a nanofluid with sinusoidal boundary conditions

The influence of thermal radiation on unsteady free convection in inclined enclosures filled by a nanofluid with sinusoidal boundary conditions

Comparative Study of Mixed Convection Flow of Mono/Hybrid Nanofluid within a Porous Medium

Applications of nanofluids in porous medium

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