Forced convection Mass transfer 4 Mathematical models 4 Natural convection 4 Bubble columns 2 Correlation methods 2 Energy dissipation 2 Flow of fluids 2 Flow velocities 2 Fluid dynamics 2 Fluidized beds 2 Mass transfer coefficients 2 Pressure drop 2 Reynolds number 2 Static mixers 2 article 2 chemical engineering 2 dynamics 2 fluidized bed 2 liquid 2 mass transfer 2 mixer 2 natural convection 2 packing 2 pressure 2 thermodynamics 2