Paper presents numerical analysis of solid particles separation from the liquid by the filter with rotating cylindrical filtering baffle. This filter, with the property of self-cleaning, is effective for separating both viscous and highly viscous media. А centrifugal force field appears in the working channel of the filter due to moving of flow being cleaned from outside to inside of rotating cylindrical baffle (opposite to the direction implemented with centrifugal filtration). Under the effect of centrifugal forces, solid particles with density greater than the density of the liquid tend to move in the opposite direction of the filtering surface and do not settle on it. Small particles and particles with the density less than the density of the liquid are trapped by filtering baffle.
Flow structures and particles separation was simulated using the CFD software tool (ANSYS CFX). The computational model is based on the Navier-Stokes equations, taking into account the Euler-Euler multiphase model for calculating the volume fraction of phases, and on the multiphase Lagrange model for finding particle trajectories. The simulation showed that separation efficiency can be significantly reduced due to the presence of turbulence and vortex formation in the manner of Gepler-Taylor vortices. The simulation also showed that...
Session: L8 - Short Oral Presentations
Day: 23 October 2019
Time: 14:45 - 16:00 h