Rheological behaviour of nanofluids: A review

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• 作者：Anuj Kumar Sharma^a ; ^{sharmaanuj79@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Arun Kumar Tiwari^b ; Amit Rai Dixit^a
• 关键词：ASCH ; Al2O3&ndash ; SiO2 clay hybrid ; BCA ; 2-Butoxyethylacetate ; CA ; Diethylene glycol monethyl ether acetate ; CMC ; Carboxy methyl cellulose ; CNT ; Carbon nanotube ; DEG ; Diethylene glycol ; EG ; Ethylene glycol ; GNP ; Graphene nanoplatelets ; HTPB ; Hydranxy terminated polybutadiene ; ITO ; Indium Tin Oxide ; ICH ; Iron oxide clay hybrid ; MWCNT ; Multi walled carbon nanotube ; PG ; Propylene glycol ; PPG ; Poly propylene glycol ; PSi ; Poly siloxane ; TNT ; Titanate nanotube
• 刊名：Renewable and Sustainable Energy Reviews
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：53
• 期：Complete
• 页码：779-791
• 全文大小：786 K

文摘

A colloidal mixture of nanometre-sized (<100 nm) metallic and non-metallic particles in conventional fluid is called nanofluid. Nanofluids are considered to be potential heat transfer fluids because of their superior thermal and tribological properties. In recent period, nanofluids have been the focus of attention of the researchers. This paper presents a summary of a number of important research works that have been published on rheological behaviour of nanofluids. This review article not only discusses the influence of particle shape and shear rate range on rheological behaviour of nanofluids but also studies other factors affecting the rheological behaviour. These other factors include nanoparticle type, volumetric concentration in different base fluids, addition of surfactant and externally applied magnetic field. From the literature review, it has been found that particle shape, its concentration, shear rate range, surfactant and magnetic field significantly affect the rheological behaviour of any nanofluid. It has been observed that nanofluids containing spherical nanoparticles are more likely to exhibit Newtonian behaviour and those containing nanotubes show non-Newtonian flow behaviour. Furthermore, nanofluids show Newtonian behaviour at low shear rate values while behave as non-Newtonian fluid at high shear rate values. Authors have also identified the inadequacies in the research works so far which require further investigations.