Heat Transfer and Fluid Dynamics Analysis of Swirling and Vortex Effects on Twisted Fins in Heat Exchangers

This thesis investigates the heat transfer and fluid dynamics performance of twisted fins as a passive heat transfer enhancement method in heat exchangers. The study examines the swirling and vortex effects induced by different twist angles in improving heat transfer and pressure drop characteristics. The research identifies optimal twist angles between 40° to 60° that maximize heat transfer while maintaining an acceptable increase in pressure drop. The findings show that twisted fins significantly enhance heat exchanger performance and efficiency, highlighting the effectiveness of swirling and vortex effects in improving thermal-hydraulic performance and establishing the potential for future heat exchanger applications.