The Effective Techniques for Enhancing the Turbulent Flow Between Two Parallel Plates: A Comprehensive Review

Abstract

The development of heat transfer devices that are used for heat conversion and recovery in several industrial and household applications has depended for many years on the study of improving the heat transfer between two parallel plates. Enhancing thermal performance is of crucial importance to improving the performance and economy of the system, and this has been studied in numerous papers. As the turbulent effects increase, Reynolds numbers improve heat transfer. Therefore, enhancing the turbulent flow between two parallel plates needs a comprehensive review of all enhancement techniques. This review explains various methods to improve the heat transfer between two parallel plates for various plate types (such as flat, corrugated, wavy, chevron, and folded), and the research study was divided into experimental and numerical parts. Furthermore, critical information regarding different enhancement techniques, such as nanoparticle size, particle diameter, type of plate, flow regime, pressure drop, surface techniques, chevron angles, and parameters, is displayed in each section's thorough table. The review indicates that the folded plate has a more turbulent effect on the airflow and gives a more uniform temperature distribution. This system's thermal performance is 35% higher than that of a flat plate in terms of temperature distribution regularity, and it takes half the time to reach thermal equilibrium. The combination of a folded plate and PCM can enhance heat transfer. Therefore, we need more studies of all aspects of this area in the future.