Infuence of Wavy Wall Geometry on Thermal and Flow Characteristics in a C-Shaped Cavity

Abstract

This study presents a computational investigation of natural convection inside a -shaped cavity featuring sinusoidally contoured horizontal walls. The investigation explores how different sinusoidal wall functions and Rayleigh numbers affect thermal and flow performance. Wall profiles examined include:  and  compared against a flat wall. The study finds that at low Rayleigh numbers  conduction dominates, while at higher  convection becomes the principal mechanism. The results highlight the enhancement in heat transfer with increased wall amplitude and frequency, particularly for the  configuration.