Numerical simulation of natural convection and mixed convection of the nanofluid in a square cavity using Buongiorno model

Garoosi, Faroogh; Garoosi, Saba; Hooman, Kamel

doi:10.1016/j.powtec.2014.08.006

Cited by 111 publications

(26 citation statements)

References 37 publications

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“…In this present paper, we have employed the Buongiorno nanofluid model [37] which incorporates both thermophoretic and Brownian motion effects. The model has been successfully deployed by several authors [38][39][40][41][42][43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Influence of Stefan blowing on nanofluid flow submerged in microorganisms with leading edge accretion or ablation

Basir

Uddin

Bég

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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Section: Introductionmentioning

confidence: 99%

Influence of Stefan blowing on nanofluid flow submerged in microorganisms with leading edge accretion or ablation

Basir

Uddin

Bég

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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“…It was found that the suction parameter increased the velocity profiles and delayed the separation of the boundary layer, while the injection parameter decreased the velocity profiles. Other useful researches conducted to simulate mixed-convection heat transfer using a nanofluid under different conditions can be found in Talebi et al (2010), Alinia et al (2011), Chamkha and Abu-Nada (2012), Arani et al (2012), and Garoosi et al (2014). Recently, much attention has been devoted to micropolar fluids due to their many practical applications such as liquid crystals, low-concentration suspension flow, blood rheology, the presence of dust or smoke, exotic lubricants, and the effect of dirt in a journal bearing.…”

Section: Mhd Mixed Convection In Trapezoidal Enclosures Filled With Mmentioning

confidence: 99%

Index, Volume 9, 2018

2018

Nano Sci Technol Int J

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Nanoscience and Nanotechnology: An International Journal (NST) is a global forum for the communication of comprehensive articles on nanoscience and nanotechnology research, especially interdisciplinary studies at the interfaces of materials science, physics, chemistry, biology, electronics, energy, and engineering. Among the areas of interest to the journal are: • Synthesis and processing of inorganic, organic and hybrid nanosized materials • Theory, modeling and simulation of nanometer-scale objects and synthetic, assembly, and interaction processes • Crystal structure, physical properties and characterization of nanomaterials and nanodevices • Application of novel nanostructures and nanodevices in photonics, electronics, energy harvesting, energy storages, and bio-medical

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“…However, they only employed the default algebraic slip velocity available in the ANSYS-Fluent software without any development for nanoscale application. Buongiorno [27], Hwang et al [28] and others [29][30][31][32][33][34] stated that the diffusion flux due to the gradient of concentration and thermophoretic force can be the dominant interaction phenomena between two phases. This idea can be mainly followed by the scale analysis of Buongiorno [27] and Hwang et al [28], while comparing it to other mechanisms such as gravity, inertia, diffusiophoresis, the magnus effect, fluid drainage, viscosity gradient and non-uniform shear rate.…”

Section: Introductionmentioning

confidence: 99%

Implementation of diffusion and electrostatic forces to produce a new slip velocity in the multiphase approach to nanofluids

2017

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Due to the improvement of heat transfer by nanofluids, an understanding of the interactions between nanoparticles and the base fluid is essential for simulation. The relative or slip velocity between nanoparticles and the base fluid is one of the main factors in choosing the multiphase mixture model approach. In this paper, a new slip velocity is proposed and used to compare the simulation result to the experimental results of natural convective flow in a cavity filled with an alumina nanofluid. Therefore, the ANSYS-Fluent 15.0 software is employed and the new slip velocity is applied as a user-defined function. The new slip velocity is a result of the combination of Brownian and thermophoretic diffusions, lift, buoyancy and centrifugal forces, virtual mass, pressure gradient, Van der Waals attraction and electric double layer repulsion forces. The comparison between these forces and induced drag force will provide the corresponding slip velocity. The simulation results were in good agreement with the flow pattern and heat transfer features of the experimental studies in the literature. It was found that thermophoretic and electrostatic slip mechanisms should essentially be considered in simulations, as well as buoyancy force. The major effects of electrostatic slip velocity are mainly seen in concentration higher than 1 vol.%, while thermophoresis could not be ignored in any concentration. Therefore, the implemented slip velocity reveals some critical aspects of nanoparticle and base fluid interactions compared to an algebraic velocity.

show abstract

Numerical simulation of natural convection and mixed convection of the nanofluid in a square cavity using Buongiorno model

Cited by 111 publications

References 37 publications

Influence of Stefan blowing on nanofluid flow submerged in microorganisms with leading edge accretion or ablation

Influence of Stefan blowing on nanofluid flow submerged in microorganisms with leading edge accretion or ablation

Index, Volume 9, 2018

Implementation of diffusion and electrostatic forces to produce a new slip velocity in the multiphase approach to nanofluids

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