Effect of unsteady natural convection on the structure of a liquid flow in a horizontal mixing chamber

Results are presented of a numerical and experimental investigation of the effect of natural convection on the structure of a liquid flow in a horizontal mixing chamber with changes in the temperature of the liquid at the inlet.Notation t_o, t_in initial temperature and temperature at the inlet to the channel - dimensionless temperature - a heat conductivity - kinematic viscosity - coefficient of cubical expansion - density - P pressure - g acceleration due to gravity - d_equ equivalent diameter of porous body - time - v_o mean velocity at the inlet - X and dimensionless vertical and radial coordinates - U and V dimensionless vertical and horizontal components of velocity - H dimensionless height of channel - R radius of inlet to channel - W velocity of liquid - t temperature drop along channel height - Re = v_oR/ Reynolds number - Pe = v_oR/a Peclet number - Fr = v _o ² /g¦t_in–t_o R Froude number - Ho = v_o/R homochroneous number Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 39, No. 4, pp. 603–610, October, 1980.