Transient Removal of Contaminant from A Channel With Differentially Heated Wall of Cavity

Abstract

This study aims to investigate the contaminants removal process from a cavity by resorting to natural flow to clean the deposits in different cavity sizes and includes different heating locations with different flow configurations. For numerical study, Constrained Interpolated Profile (CIP) method was used for the advection phase of momentum and energy equation, and central difference was used to solve the non-advection phase of momentum and energy equations. The numerical studies include different aspect ratios (AR), 1 to 4 and various Reynolds numbers (Re), 50 to 1000. It was found that a lower flowrate and larger cavity aspect ratio let the main flow to enter the cavity to the bottom without creating shear layer at end of cavity.