Journal ArticleDOI
Increasing heat transfer of non-Newtonian nanofluid in rectangular microchannel with triangular ribs
TLDR
In this paper, solid nanoparticles of Aluminum Oxide have been added to the non-Newtonian fluid in volume fractions of 0.2% with diameters of 25, 45 and 100nm.Abstract:
In this study, computational fluid dynamics and the laminar flow of the non-Newtonian fluid have been numerically studied. The cooling fluid includes water and 0.5 wt% Carboxy methyl cellulose (CMC) making the non-Newtonian fluid. In order to make the best of non-Newtonian nanofluid in this simulation, solid nanoparticles of Aluminum Oxide have been added to the non-Newtonian fluid in volume fractions of 0–2% with diameters of 25, 45 and 100 nm. The supposed microchannel is rectangular and two-dimensional in Cartesian coordination. The power law has been used to speculate the dynamic viscosity of the cooling nanofluid. The field of numerical solution is simulated in the Reynolds number range of 5read more
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Experimental investigation of rheological behavior of the hybrid nanofluid of MWCNT–alumina/water (80%)–ethylene-glycol (20%)
TL;DR: In this paper, the effects of volume concentration and temperature on dynamic viscosity of the hybrid nanofluid of multi-walled carbon nanotubes and aluminum oxide in a mixture of water (80%) and ethylene-glycol (20%) has been presented.
Journal ArticleDOI
Numerical study on mixed convection of a non-Newtonian nanofluid with porous media in a two lid-driven square cavity
Saeed Nazari,Rahmat Ellahi,Rahmat Ellahi,Mohammad Mohsen Sarafraz,Mohammad Reza Safaei,Ali Asgari,Omid Ali Akbari +6 more
TL;DR: In this article, mixed flow of the non-Newtonian water/Al2O3 nanofluid with 0-4% nanoparticles volume fractions (φ) inside a two-dimensional square cavity with hot and cold lid-driven motion and porous media is simulated at Richardson numbers (Ri) of 0.01, 10 and 100 and Darcy numbers (Da) of 10−4
Journal ArticleDOI
Experimental evaluation of dynamic viscosity of ZnO–MWCNTs/engine oil hybrid nanolubricant based on changes in temperature and concentration
TL;DR: In this article, an experimental investigation on the effects of temperature and concentration of nanoparticles on the viscosity of ZnO-MWCNTs/engine oil (SAE 10W40) hybrid nanolubricant is presented.
Journal ArticleDOI
Application of nanofluid to improve the thermal performance of horizontal spiral coil utilized in solar ponds: Geometric study
Erfan Khodabandeh,Mohammad Reza Safaei,Soheil Akbari,Omid Ali Akbari,Abdullah A.A.A. Al-Rashed +4 more
TL;DR: In this article, the effects of nanofluid concentrations and different cross-sections of tube on thermal performance of horizontal spiral-coil in laminar fluid flow are investigated numerically.
Journal ArticleDOI
Numerical investigation of flow and heat transfer characteristics in smooth, sinusoidal and zigzag-shaped microchannel with and without nanofluid
Davood Toghraie,Mohammad Mehdi Davood Abdollah,Farzad Pourfattah,Omid Ali Akbari,Behrooz Ruhani +4 more
TL;DR: In this paper, the effect of amplitude and wave length of sinusoidal and zigzag-shaped microchannel, volume of fraction and Reynolds number on heat transfer, performance evaluation criterion were evaluated.
References
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Journal ArticleDOI
Effect of particle size on the convective heat transfer in nanofluid in the developing region
TL;DR: In this paper, the effect of particle size on convective heat transfer in laminar developing region was evaluated with alumina-water nanofluids in tube flow with constant heat flux.
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Measurement of thermal conductivity of ZnO–TiO 2 /EG hybrid nanofluid
TL;DR: In this paper, an experimental investigation on the effects of temperature and nanoparticles concentration on the thermal conductivity of ZnO-TiO2/EG hybrid nanofluids is presented.
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Study of heat transfer due to laminar flow of copper–water nanofluid through two isothermally heated parallel plates
TL;DR: In this paper, the thermal conductivity of nanofluid has been determined by model proposed by Patel et al. and the fluid was considered as Newtonian as well as non-Newtonian for a wide range of Reynolds number (Re = 5 to 1500) and solid volume fraction (0.00 ⩽ ϕ⩽ 0.050 ).
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Effects of temperature and nanoparticles concentration on rheological behavior of Fe3O4–Ag/EG hybrid nanofluid: An experimental study
TL;DR: In this article, the effects of temperature and nanoparticles concentration on the rheological behavior of Fe 3 O 4 -Ag/EG hybrid nanofluid have been experimentally investigated.
Journal ArticleDOI
The effect of tyre and rider properties on the stability of a bicycle
TL;DR: In this paper, an open-loop bicycle-rider model was developed in the commercial multibody dynamics software ADAMS and the effect of bicycle and rider properties on bicycle stability was analyzed.