1N. SWETHAK, 2Dr.A.ANITHA, 3B. DINESH, 4T. VIGNESHWAR , 5D. MAHESH, 6B. ANJANEYULU 03 08 Efficient thermal management is a critical aspect of modern aircraft engine design as excessive temperatures can reduce engine efficiency accelerate component degradation and compromise operational safety This project presents the modelling and Computational Fluid Dynamics CFD analysis of aircraft engine fan cooling to investigate airflow characteristics and heat dissipation within the fan section A threedimensional model of the engine fan assembly is developed using computeraided design CAD software and imported into a CFD environment for numerical simulation The analysis evaluates airflow velocity pressure distribution turbulence intensity and temperature variations under different operating conditions Appropriate boundary conditions material properties and turbulence models are applied to replicate realistic engine cooling scenarios The simulation identifies regions of high thermal concentration and airflow recirculation that may reduce cooling efficiency Based on the obtained results design modifications such as optimized blade geometry improved airflow channels and enhanced cooling passage configurations are assessed to improve thermal performance The CFD outcomes demonstrate that optimized airflow significantly enhances heat transfer minimizes temperature gradients and promotes uniform cooling across critical engine components The study also highlights the importance of numerical simulation in reducing prototype development time lowering experimental costs and supporting design optimization during the early stages of aircraft engine development Overall the proposed CFDbased approach provides valuable insights into the thermal behaviour of aircraft engine fans and offers an effective methodology for improving cooling efficiency engine reliability and operational lifespan The findings contribute to the advancement of aerospace thermal management systems by enabling engineers to design safer lighter and more energyefficient aircraft propulsion systems while maintaining high performance under demanding flight conditions Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026