COMPUTATIONAL STUDY OF CYCLONE FLOW FLUID DYNAMICS USING A DIFFERENT INLET SECTION ANGLE

Abstract

The conventional design of the cyclone model has been used without significant
modifications for about a century. Recently, some studies were carried out to improve
equipment performance by evaluating the geometric influence of the tangential inlet section
and scroll inlet duct design. In this work, the influence of cyclone inlet section geometry
was studied using an angle of 45 degrees in relation to the cyclone body. The study was
conducted for the gas and gas-particle phases, based on an experimental study available in
the literature, where a conventional inlet section was used. Numerical experiments were
carried out with the CFX computational code. The fluid dynamics profiles and tangential
velocity component were evaluated for three inlet velocities (2.75, 7.75 and 15.2 m/s)
using the Reynolds Stress model. The results showed that this proposal is useful for
improving the cyclone performance.