in order to simulate the rotating disk contactor all hydrodynamic parameters, dispersed phase hold-up, characteristic velocity, mean drop size, drop size distribution, axial mixing and mass transfer have been taken into account. mechanisms of mass transfer (stagnant, circulating, oscillating drops) were used in this study. column height found from effect of mean drop size and drop size distribu...

A physical model of gabion overflow dams was studied to determine the velocity profile and Reynolds shear stress. Physical tests were done under two different conditions of dam crest, overflow dams with impermeable and with permeable crests. Instantaneous velocity components over dam crest were measured by an ADV (Acoustic Doppler Velocimeter) instrument. This instrument is capable of measuring...

The article considers the issue of velocity distribution in a turbulent flow. logarithmic profile obtained on basis semiempirical theory turbulence by L. Prandtl is given. A comparison calculations for various dependencies with measurement data performed. It shown that calculated show discrepancy each other and experimental data. study hydraulic characteristics water flows required to solve pro...