Transition of nanofluids flow in an inclined heated pipe

Saha, G. and Paul, M. C. (2017) Transition of nanofluids flow in an inclined heated pipe. International Communications in Heat and Mass Transfer, 82, pp. 49-62. (doi:10.1016/j.icheatmasstransfer.2017.02.017)

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Abstract

A numerical investigation is carried out to investigate the transitional flow behaviour of nanofluids flow in an inclined pipe using both single and multi-phase models. Two different nanofluids are considered, and these are Al2O3–water and TiO2–water nanofluids. Moreover, SST κ − ω transitional model is implemented to study the nanofluids flow in inclined pipe. Gravitational force is also adopted by considering Boussinesq approximation in the momentum equation. Results reveal that Buoyancy force play a significant role on the degeneration of heat transfer rate with the increase of Reynolds number for different inclination angles. It indicates that mixed convection has opposite effect on the inclined pipe than the forced convection on the horizontal pipe. Moreover, some deformation of the flow and temperature fields near the upstream region is observed with the increase of inclination angle due to Buoyancy force.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Paul, Dr Manosh and Saha, Mr Goutam
Authors: Saha, G., and Paul, M. C.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:International Communications in Heat and Mass Transfer
Publisher:Elsevier
ISSN:0735-1933
ISSN (Online):1879-0178
Published Online:06 February 2017
Copyright Holders:Copyright © 2017 Elsevier
First Published:First published in Heat and Mass Transfer 82:49-62
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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