Analysis of fluid-structure interaction in the transfer of heat through natural convection within a L-shaped wavy enclosure featuring a movable baffle

Abstract

This paper investigates the fluid-structure interaction in the transfer of heat through natural convection within an L-shaped wavy enclosure featuring a flexible baffle. Through numerical simulations through Comsol Multiphysics based on Finite Elements Method, the study explores the influence of various parameters such as time, Rayleigh number (Ra), elasticity modulus (E) on isotherms, streamlines, and velocity surfaces within the enclosure. Results reveal complex flow patterns, with high-temperature isotherms aligning closely with the hot wall and undergoing distortion near the flexible baffle. Furthermore, the analysis highlights the formation of circulation zones under the baffle, influenced by changes in Ra and E. These findings contribute to a deeper understanding of fluid-structure interaction phenomena in natural convection systems, with implications for thermal management applications in various engineering fields.