RETRACTED: A comparative study of Al2O3 and TiO2 nanofluid flow over a wedge with non-linear thermal radiation
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 26 September 2019
Issue publication date: 2 March 2020
Retraction statement
The publishers of International Journal of Numerical Methods for Heat & Fluid Flow wish to retract the article Sreedevi, P., Reddy, P.S. and Sheremet, M. (2020), “A comparative study of Al2O3 and TiO2 nanofluid flow over a wedge with non-linear thermal radiation”, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 3, pp. 1291-1317. https://doi.org/10.1108/HFF-05-2019-0434
An internal investigation into a series of submissions has uncovered evidence that the peer review process was compromised. As a result of these concerns, the findings of the article cannot be relied upon. This decision has been taken in accordance with Emerald's publishing ethics and the COPE guidelines on retractions.
The publishers of the journal sincerely apologize to the readers.
The retracted article is available at: https://doi.org/10.1108/HFF-05-2019-0434
Abstract
Purpose
The purpose of this study is to analyze the impact of chemical reaction and thermal radiation on mixed convection flow, heat and mass transfer characteristics of nanofluid through a wedge occupied with water–TiO2 and water–Al2O3 made nanofluid by considering velocity, temperature and concentration slip conditions in present investigation.
Design/methodology/approach
Using acceptable similarity transformations, the prevailing partial differential equations have been altered into non-linear ordinary differential equations and are demonstrated by the diverse thermophysical parameters. The mathematical model is solved numerically by implementing Galarkin finite element method and the outcomes are shown in tables and graphs.
Findings
The temperature and concentration fields impede as magnetic field parameter improves in both water–Al2O3 and water–TiO2 nanofluid. While there is contradiction in the velocity field as the values of magnetic field parameter rises in both nanofluids. The non-dimensional velocity rate, rate of temperature and rate of concentration rise with improved values of Weissenberg number.
Originality/value
Nanofluid flows past wedge-shaped geometries have gained much consideration because of their extensive range of applications in engineering and science, such as, magnetohydrodynamics, crude oil extraction, heat exchangers, aerodynamics and geothermal systems. Virtually, these types of nanofluid flows happen in ground water pollution, aerodynamics, retrieval of oil, packed bed reactors and geothermal industries.
Keywords
Citation
Sreedevi, P., Reddy, P.S. and Sheremet, M. (2020), "RETRACTED: A comparative study of Al2O3 and TiO2 nanofluid flow over a wedge with non-linear thermal radiation", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 3, pp. 1291-1317. https://doi.org/10.1108/HFF-05-2019-0434
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited