Eulerian–Eulerian two-phase numerical simulation of nanofluid laminar forced convection in a microchannel

Kalteh, Mohammad; Abbassi, Abbas; Saffar‐Avval, Majid; Harting, Jens

doi:10.1016/j.ijheatfluidflow.2010.08.001

Cited by 260 publications

(101 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 9a shows that the heat transfer increases with Reynolds number, as expected. Figure 9b shows the enhancement of average heat transfer coefficient related to the concentration of nanoparticles: for acetone mass fraction 50% the enhancement of the heat transfer coefficient can reach 180% of the original base fluid value and this type of behaviour is confirmed by previous studies [24,27,41].…”

Section: 4-effects On the Wall Shear Stress And Skin Frictionsupporting

confidence: 80%

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

Mohammed

Giddings

Walker

et al. 2018

Applied Thermal Engineering

View full text Add to dashboard Cite

Section: 4-effects On the Wall Shear Stress And Skin Frictionsupporting

confidence: 80%

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

Mohammed

Giddings

Walker

et al. 2018

Applied Thermal Engineering

View full text Add to dashboard Cite

“…The use of nanofluids in microchannel heat exchangers has been recommended as a potentially feasible solution for cooling microelectronic devices. There are several experimental and numerical reports that concentrate on understanding the enhanced heat transfer characteristics and pressure drop of nanofluids in parallel microchannel systems [26][27][28][29][30][31][32]. It has been reported that enhanced heat transfer can be achieved with the use of nanofluid in microchannels but at the cost of increased pressure drop.…”

Section: Introductionmentioning

confidence: 99%

Particle and thermohydraulic maldistribution of nanofluids in parallel microchannel systems

Maganti

Dhar

Sundararajan

et al. 2016

Microfluid Nanofluid

View full text Add to dashboard Cite

Fluidic maldistribution in microscale multichannel devices requires deep understanding to achieve optimized flow and heat transfer characteristics. A thorough computational study has been performed to understand the concentration and thermo-hydraulic maldistribution of nanofluids in parallel microchannel systems using an Eulerian-Lagrangian twin phase model.The study reveals that nanofluids cannot be treated as homogeneous single phase fluids in such complex flow domains and effective property models fail drastically to predict the performance parameters. To comprehend the distribution of the particulate phase, a novel concentration maldistribution factor has been proposed. It has been observed that distribution of particles need not essentially follow the flow pattern, leading to higher thermal performance than expected from homogeneous models. Particle maldistribution has been conclusively shown to be due to various migration and diffusive phenomena like Stokesian drag, Brownian motion, thermophoretic drift, etc. The implications of particle distribution on the cooling performance have been illustrated and smart fluid effects (reduced magnitude of maximum temperature) have been observed and a mathematical model to predict the enhanced cooling performance in such flow geometries has been proposed. The article presents lucidly the effectiveness of discrete phase approach in modelling nanofluid thermo-hydraulics and sheds insight on behavior of nanofluids in complex flow domains.2

show abstract

“…Hou-lin Liu [12] proposed an improved κ-ω model, which is coupled with the SchnerrSauer cavitation model by ANSYS CFX to predict the cavitation flow in the centrifugal pump. The results of the computer simulation experiment are easily affected by factors such as model precision, boundary conditions and related factors, and hence its accuracy cannot be determined [13][14]. Therefore, a bench simulation experiment is adopted in this paper.…”

Section: Introductionmentioning

confidence: 99%

Experimental research on hydraulic characteristic of centrifugal pump in plateau

Jiang¹,

Zhang²

2017

IJHT

View full text Add to dashboard Cite

The hydraulic characteristics of a centrifugal pump change when in a plateau, while the corresponding law is unclear. Therefore, experimental research needs to be undertaken on the hydraulic characteristics of a centrifugal pump in a plateau for a quantitative analysis of the changing law. In this paper, the working status of a centrifugal pump in a plateau was simulated by the method of controlling the inlet vacuum so as to acquire the pressure and the flow data under different working conditions. The corresponding conclusions were reached by using thorough data analysis, which shows that with every 500m increase in altitude, the accompanying pump pressure decreased by about 5%-10%, the flow decreased by about 2%-5% and the overall efficiency decreased by about 2%-9%. This theoretical analysis shows that the increase in pump frictional loss is the fundamental reason for the change in the hydraulic characteristics of a centrifugal pump in a plateau.

show abstract

Eulerian–Eulerian two-phase numerical simulation of nanofluid laminar forced convection in a microchannel

Cited by 260 publications

References 28 publications

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

Particle and thermohydraulic maldistribution of nanofluids in parallel microchannel systems

Experimental research on hydraulic characteristic of centrifugal pump in plateau

Contact Info

Product

Resources

About