Abstract
Local dissipation rates were calculated in a corrected way from the data of turbulence energy spectrum measurements to obtain dissipation rate distributions.
For both baffled and unbaffled agitation, dissipation rates showed a wide variation in the vessel space up to several tenfold, with a space-mean value nearly equal to the power input per unit mass. Under geometrically similar conditions of the vessels, these rates tended to change proportionally to the power per mass so that the distribution pattern should be kept unchanged.
The effects of dissipation rate distributions on liquid-liquid and solid-liquid agitation were examined quantitatively. The influence of impeller dimensions on droplet size and solid-liquid mass transfer shown in the literature was explicable based on the change of distribution.
