Used StarCCM+ to conduct Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) on a truck fairing design aimed at boosting fuel efficiency. By optimizing mesh quality, I ensured precise simulations that demonstrated significant aerodynamic improvements. The analysis involved assessing various design iterations, evaluating pressure distribution, and minimizing drag forces. The results highlighted a potential increase in fuel efficiency by reducing aerodynamic drag, contributing to cost savings and lower emissions for long-haul trucks. Additionally, the project included validating simulation results with experimental data to ensure accuracy and reliability.