Study of Airflow Parameter Variations in a Duct with a Gradually Expanding Cross Section Using Ansys Fluent

This paper presents the results of an investigation into the variations of airflow parameters such as pressure and velocity as the flow moves through a diverging nozzle, using the Ansys Fluent software platform. Diverging nozzles are widely employed in the jet engines of supersonic aircraft. This study examines the changes in airflow parameters as the flow passes through such a nozzle, comparing the simulation results from Ansys Fluent with both theoretical and experimental data. This approach enables the determination of specific parameters under varying conditions, as well as the identification of the underlying causes for these parameter changes.