Collect. Czech. Chem. Commun.
1981, 46, 2021-2031
https://doi.org/10.1135/cccc19812021
Process characteristics of screw impellers with a draught tube for Newtonian liquids. Pumping capacity of the impeller
Pavel Seichter
Research Institute of Chemical Equipment, 638 00 Brno
Abstract
Velocity profiles and pumping capacity have been determined using a thermistor anemometer in a vessel equipped with a screw impeller. In region of the creeping flow of a Newtonian liquid, i.e. for Re <15, the dimensionless pumping capacity is dependent on the geometrical arrangement of the mixing system. The efficiency was assessed of individual configuration from the value energy criterion expressing the dimensionless power requirements for recirculation of a highly viscous liquid in a vessel equipped with a screw impeller.
