This paper aims to to simulate the flow and heat transfer during free convection in a square cavity using double-multi-relaxation time (MRT) lattice Boltzmann method.
The double-MRT lattice Boltzmann method is used, and the natural convection fluid flow and heat transfer under influence of different parameters are analyzed. The D2Q5 model and D2Q9 model are used for simulation of temperature field and flow field, respectively. The cavity is filled with CuO-water nanofluid; in addition, the thermo-physical properties of nanofluid and the effect of nanoparticles’ shapes are considered using Koo–Kleinstreuer–Li (KKL) model. On the other hand, the cavity is included with an internal active hollow with constant thermal boundary conditions at its walls and variable dimensions. It should be noted that the dimensions of the internal hollow will be determined by as aspect ratio.
The Rayleigh number, nanoparticle concentration and the aspect ratio are the governing parameters. The heat transfer performance of the cavity has direct relationship with the Rayleigh number and solid volume fraction of CuO-water nanofluid. Moreover, the configuration of the cavity is good controlling factor for changing the heat transfer performance and entropy generation.
The originality of this work is using double-MRT lattice Boltzmann method in simulating the free convection fluid flow and heat transfer.
Retraction notice: The publishers of International Journal of Numerical Methods for Heat & Fluid Flow wish to retract the article “Lattice Boltzmann simulation of convective flow and heat transfer in a nanofluid-filled hollow cavity” by Q. Pu, F. Aalizadeh, D. Aghamolaei, M. Masoumnezhad, A. Rahimi and A. Kasaeipoor which appeared in Volume 29, Issue 9, 2019.
It has come to our attention that there are concerns regarding the authorship of the paper and that the peer review process was compromised.
Portions of the article are also taken, without attribution, from the following sources:
1. Rahimi, A., Azarikhah, P., Kasaeipoor, A., Hasani Malekshah, E. and Kolsi, L. (2019), “Lattice Boltzmann simulation of free convection’s hydrothermal aspects in a finned/multi-pipe cavity filled with CuO-water nanofluid”, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 3, pp. 1058-1078, https://doi.org/10.1108/HFF-07-2018-0349.
2. Rao, Y., Shao, Z., Rahimi, A., Kasaeipoor, A. and Hasani Malekshah, E. (2019), “Study on fluid flow and heat transfer in fluid channel filled with KKL model-based nanofluid during natural convection using FVM”, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 8, pp. 2622-2641, https://doi.org/10.1108/HFF-09-2018-0496.
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.
Pu, Q., Aalizadeh, F., Aghamolaei, D., Masoumnezhad, M., Rahimi, A. and Kasaeipoor, A. (2019), "Lattice Boltzmann simulation of convective flow and heat transfer in a nanofluid-filled hollow cavity", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 9, pp. 3075-3094. https://doi.org/10.1108/HFF-12-2018-0809
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