The publisher of International Journal of Numerical Methods for Heat and Fluid Flow wishes to retract the article Khan, M.I., Ahmad Khan, S., Hayat, T., Waqas, M. and Alsaedi, A. (2020), “Modeling and numerical simulation for flow of hybrid nanofluid (SiO2/C3H8O2) and (MoS2/C3H8O2) with entropy optimization and variable viscosity”, International Journal of Numerical Methods for Heat and Fluid Flow, Vol. 30 No. 8, pp. 3939–3955, https://doi.org/10.1108/HFF-10-2019-0756. It has come to our attention that the peer review process for this article was compromised; as a result, the article’s findings cannot be relied upon. The authors of this article would like to note that they do not agree with the content of this notice. The publisher of the journal sincerely apologizes to the readers.
The retracted article is available at: https://doi.org/10.1108/HFF-10-2019-0756
