Computational Fluid Dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and algorithms to solve and analyze problems involving fluid flows. By simulating the behavior of liquids and gases, CFD helps engineers and scientists understand how fluids interact with surfaces and other fluids. This technology is widely used in various industries, including aerospace, automotive, and civil engineering. CFD involves creating a digital model of a physical system and then applying mathematical equations to predict how fluids will move and behave under different conditions. The results can inform design decisions, optimize performance, and improve safety in applications such as aircraft design, wind turbine efficiency, and chemical processing.