An experimental/numerical hydrothermal analysis on natural convection and TiO2-SiO2/W-EG nanofluid’s properties in a hollow/finned cavity
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 31 January 2020
Issue publication date: 25 August 2020
Abstract
Purpose
This paper aims to provide an experimental/numerical analysis of free convection within a hollow/finned cavity.
Design/methodology/approach
The hollow square cavity is equipped with eight active fins which have a similar configuration and different temperatures. Furthermore, four different thermal arrangements are considered to determine the order of temperature for each fin. The coupled lattice Boltzmann method is used, which not only maintains the considerable advantages of standard lattice Boltzmann method such as accuracy but also enhances the stability of this method.
Findings
The cavity is filled with TiO2-SiO2/Water-Ethylene Glycol nanofluid. The thermal conductivity and dynamic viscosity of nanofluid are experimentally measured using high-precision devices in six concentrations of the nanoparticle. In this study, some main parameters, including a range of Rayleigh number (103 < Ra < 106), the concentration of nanofluid (0.5 to 3 Vol.%) and thermal arrangements of fins, are considered. The effects of these main parameters on the flow, isotherms, heat transfer performance and entropy generation are studied.
Originality/value
The originality of this paper is combining the numerical simulation (lattice Boltzmann method) using a modern approach with experimental observations of nanofluid’s properties.
Keywords
Acknowledgements
Retraction notice: The publishers of International Journal of Numerical Methods for Heat & Fluid Flow wish to retract the article “An experimental/numerical hydrothermal analysis on natural convection and TiO2-SiO2/W-EG nanofluid’s properties in a hollow/finned cavity” by M. Zaresharif, F. Zarei, A.M. Ranjbar, L. Kok Foong and D. Ross which appeared in Volume 30, Issue 10, 2020.
It has come to our attention that there are concerns regarding the identity of the author “David Ross” and the originality of this paper. A reasonable description of authors’ contribution to the paper has not been provided and concerns regarding its originality have not been addressed.
Despite numerous attempts to contact the authors, the journal has received no response; the response of the authors would be gratefully received.
The International Journal of Numerical Methods for Heat & Fluid Flow submission guidelines make it clear that only those who have made a substantial contribution to the article should be credited as authors and that articles must be original. The publishers of the journal sincerely apologize to the readers.
Citation
Zaresharif, M., Zarei, F., Ranjbar, A.M., Kok Foong, L. and Ross, D. (2020), "An experimental/numerical hydrothermal analysis on natural convection and TiO2-SiO2/W-EG nanofluid’s properties in a hollow/finned cavity", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 10, pp. 4563-4581. https://doi.org/10.1108/HFF-09-2019-0703
Publisher
:Emerald Publishing Limited
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