What is the primary purpose of the diffuser section in a turbine engine?

The primary purpose of the diffuser section in a turbine engine is to increase pressure and reduce velocity. As air enters the diffuser, it slows down, allowing for a conversion of kinetic energy (velocity) into pressure energy. This process is essential in turbine engines because a higher pressure in the combustion chamber leads to more efficient fuel combustion, ultimately improving engine performance and thrust output. The design of the diffuser is crucial, as it helps to prepare the airflow for the optimal conditions needed for combustion, which enhances the overall efficiency and effectiveness of the engine.