Numerical study of hydrodynamic and heat transfer of nanofluid flow in microchannels containing micromixer

Islami, Sima Baheri; Dastvareh, B.; Gharraei, R.

doi:10.1016/j.icheatmasstransfer.2013.01.002

Cited by 22 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To model nanofluids as a two-phase fluid is complex, since this approach must deal with continuity, momentum and energy equations associated to the particles and base fluid. As stated in Islami et al (2013), when assuming that nanoparticles are ultra-fine (<100 nm) and that these are moving at the same velocity as the continuous liquid phase under local thermal equilibrium conditions, then the nanoparticle mixture can be considered to behave like a single-phase fluid. In Lotfi et al (2010) the forced convective heat transfer of a Al 2 O 3 -water nanofluid to the walls of a horizontal tube is studied by means of three models: single-phase, two-phase and mixture.…”

Section: Use Of Nanofluids In Heat Transfer With Impinging Jetsmentioning

confidence: 99%

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

Granados-Ortiz

Leon-Prieto

Ortega-Casanova

2020

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

Section: Use Of Nanofluids In Heat Transfer With Impinging Jetsmentioning

confidence: 99%

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

Granados-Ortiz

Leon-Prieto

Ortega-Casanova

2020

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

“…Toh et al [95] confirmed that the increase in fluid viscosity can have a significant impact on the overall pressure drop. A numerical study by Islami et al [96] on nanofluid flow through a rectangular microchannel with baffles placed alternately at the top and bottom walls revealed greater heat transfer augmentation due to vortices created by the baffles than the higher conductivity of nanofluid. However, the experimental study of Anbumeenakhsi and Thansekhar [97] exhibited TEF to increase beyond 3.0 with addition of 0.25% (by volume) aluminum oxide nanoparticles in water.…”

Section: Smooth and Straight Channelsmentioning

confidence: 99%

A review of liquid flow and heat transfer in microchannels with emphasis to electronic cooling

2019

View full text Add to dashboard Cite

Since the realization of microchannel devices more than three and half decades ago with water as the cooling fluid providing heat transfer enhancement, significant progress has been made to improve the cooling performance. Thermal management for electronic devices with their ever-widening user profile remains the major driving force for performance improvement in terms of miniaturisation, long-term reliability, and ease of maintenance. The ever-increasing requirement of meeting higher heat flux density in more compact and powerful electronic systems calls for further innovative solutions. Some recent studies indicate the promise offered by processes with phase change and the use of active devices. But their adoption for electronic cooling still weighs unfavourably against long-term fluid stability and simplicity of device profile with moderate to high heat transfer capability. Applications and reviews of these promising research trends have been briefly visited in this work. The main focus of this review is the flow and heat transfer regime related to electronic cooling in evolving channel forms, whose fabrication are being enabled by the significant advancement in micro-technologies. Use of disruptive wall structures like ribs, cavities, dimples, protrusions, secondary channels and other interrupts along with smooth-walled channels with curved flow passages remain the two chief geometrical innovations envisaged for these applications. These innovations target higher thermal enhancement factor since this implies more heat transfer capability for the same pumping power in comparison with the corresponding straight-axis, smooth-wall channel configuration. The sophistication necessary to deal with the experimental uncertainties associated with the micron-level characteristic length scale of any microchannel device delayed the availability of results that exhibited acceptable matching with numerical investigations. It is indeed encouraging that the experimental results pertaining to simple smooth channels to grooved, ribbed and curved microchannels without unreasonable increase in pumping power have shown good agreement with conventional numerical analyses based on laminar-flow conjugate heat-transfer model with no-slip boundary condition. The flow mechanism with the different disruptive structures like dimple, cavity and rib, fin and interruption, vortex generator, convergingdiverging side walls or curved axis are reviewed to augment the heat transfer. While the disruptions cause heat transfer enhancement by interrupting the boundary layer growth and promoting mixing by the shed vortices or secondary channel flow, the flow curvature brings in enhancement by the formation of secondary rolls culminating into chaotic advection at higher Reynolds number. Besides these revelations, the numerical studies helped in identifying the parameter ranges, promoting a particular enhancement mechanism. Also, the use of modern tools like Poincare section and the analysis of flow bifurcation leading to chaotic advection is discussed....

show abstract

“…An optimization study of microchannel heat exchangers was performed in [159]. Islami et al [160,161] studied heat transfer and fluid flow in microchannels containing micromixers. Newtonian and non-Newtonian base fluids were considered.…”

Section: Nanofluids For Microsystem Coolingmentioning

confidence: 99%

Mathematical Modeling and Computer Simulations of Nanofluid Flow with Applications to Cooling and Lubrication

Kleinstreuer

2016

Fluids

View full text Add to dashboard Cite

There is a growing range of applications of nanoparticle-suspension flows with or without heat transfer. Examples include enhanced cooling of microsystems with low volume-fractions of nanoparticles in liquids, improved tribological performance with lubricants seeded with nanoparticles, optimal nanodrug delivery in the pulmonary as well as the vascular systems to combat cancer, and spray-coating using plasma-jets with seeded nanoparticles. In order to implement theories that explain experimental evidence of nanoparticle-fluid dynamics and predict numerically optimum system performance, a description of the basic math modeling and computer simulation aspects is necessary. Thus, in this review article, the focus is on the fundamental understanding of the physics of nanofluid flow and heat transfer with summaries of microchannel-flow applications related to cooling and lubrication.

show abstract

Numerical study of hydrodynamic and heat transfer of nanofluid flow in microchannels containing micromixer

Cited by 22 publications

References 20 publications

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

A review of liquid flow and heat transfer in microchannels with emphasis to electronic cooling

Mathematical Modeling and Computer Simulations of Nanofluid Flow with Applications to Cooling and Lubrication

Contact Info

Product

Resources

About

Numerical study of hydrodynamic and heat transfer of nanofluid flow in microchannels containing micromixer

Cited by 22 publications

References 20 publications

Computational study of the application of Al2O3 nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

Computational study of the application of Al2O3 nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

A review of liquid flow and heat transfer in microchannels with emphasis to electronic cooling

Mathematical Modeling and Computer Simulations of Nanofluid Flow with Applications to Cooling and Lubrication

Contact Info

Product

Resources

About

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

Computational study of the application of Al₂O₃ nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes