Investigation of Hydrodynamic Removal of Particles from an Open Heated Cavity in a Channel

This paper presents the results of a numerical study on the removal process of fluid particles under the influence of mixed convection in a horizontal channel with an open cavity. The bottom wall of the cavity is heated at a constant temperature (Th), while the top wall is maintained at a relatively low temperature (Tc). Fluid with a uniform velocity (uo) and temperature (Tc) is introduced into the channel. The analysis is carried out for a wide range of values of Grashof numbers (101 ≤Gr ≤105) and Reynolds numbers (10 ≤ Re ≤ 1000). The results show that the removal process of fluid particles increases by the increase in Grashof number, while decreases by the increase in Reynolds number as the well as Cavity’s aspect ratio.