The viscosity of nanofluids : a review of the theoretical, empirical, and numerical models

Show simple item record Meyer, Josua P. Adio, Saheed Adewale Sharifpur, Mohsen Nwosu, Paul N. 2015-12-04T09:07:14Z 2016
dc.description.abstract The enhanced thermal characteristics of nanofluids have made it one of the most raplidly growing research areas in the last decade. Numerous researches have shown the merits of nanofluids in heat transfer equipment. However, one of the problems is the increase in viscosity due to the suspension of nanoparticles. This viscosity increase is not desirable in the industry, especially when it involves flow, such as in heat exchanger or microchannel applications where lowering pressure drop and pumping power are of significance. In this regard, a critical review of the theoretical, empirical, and numerical models for effective viscosity of nanofluids is presented. Furthermore, different parameters affecting the viscosity of nanofluids such as nanoparticle volume fraction, size, shape, temperature, pH, and shearing rate are reviewed. Other properties such as nanofluid stability and magnetorheological characteristics of some nanofluids are also reviewed. The important parameters influencing viscosity of nanofluids are temperature, nanoparticle volume fraction, size, shape, pH, and shearing rate. Regarding the composite of nanofluids, which can consist of different fluid bases and different nanoparticles, different accurate correlations for different nanofluids need to be developed. Finally, there is a lack of investigation into the stability of different nanofluids when the viscosity is the target point. en_ZA
dc.description.embargo 2016-09-30
dc.description.librarian hb2015 en_ZA
dc.description.sponsorship National Research Foundation of South Africa (NRF), Stellenbosch University / University of Pretoria Solar Hub, CSIR, EEDSM Hub, NAC, and IRT SEED. en_ZA
dc.description.uri en_ZA
dc.identifier.citation Josua P. Meyer, Saheed A. Adio, Mohsen Sharifpur & Paul N. Nwosu (2016) The Viscosity of Nanofluids: A Review of the Theoretical, Empirical, and Numerical Models, Heat Transfer Engineering, 37:5, 387-421, DOI: 10.1080/01457632.2015.1057447. en_ZA
dc.identifier.issn 0145-7632 (print)
dc.identifier.issn 1521-0537 (online)
dc.identifier.other 10.1080/01457632.2015.1057447
dc.language.iso en en_ZA
dc.publisher Routledge en_ZA
dc.rights © Taylor and Francis Group, LLC. This is an electronic version of an article published in Heat Transfer Engineering, vol. 37, no. 5, pp. 387-421, 2016. doi : 10.1080/01457632.2015.1057447. Heat Transfer Engineering is available online at : http://www.tandfonline.comloi/uhte20. en_ZA
dc.subject Viscosity en_ZA
dc.subject Nanofluids en_ZA
dc.subject Numerical models en_ZA
dc.subject Thermal characteristics en_ZA
dc.title The viscosity of nanofluids : a review of the theoretical, empirical, and numerical models en_ZA
dc.type Postprint Article en_ZA

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