%0 Journal Article %A A. V. Ryazhskikh %T On the identification of entrance hydrodynamic region in case of laminar flow of Newtonian fluid in horizontal annular channel %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika %D 2017 %P 34-40 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURM_2017_9_3_a4/ %G ru %F VYURM_2017_9_3_a4