Retraction notice: Multiple-relaxation-time lattice Boltzmann model for simulation of free convection in axisymmetric nanofluid-filled annulus-experimental and numerical observations

The publishers of International Journal of Numerical Methods for Heat and Fluid Flow wish to retract the article “Multiple-relaxation-time lattice Boltzmann model for simulation of free convection in axisymmetric nanofluid-filled annulus-experimental and numerical observations” by H Sun and D Ross which appeared in Volume 30, Issue 2, 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 and 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.