Dynamic Pressure Fluctuations in the Internozzle Region of a Twin-Jet Nacelle 841540
The current trend of flying aircraft in a severe environment; i.e., high mach numbers at low altitudes, has created interest in the impact of dynamic pressure fluctuations on nozzle hardware durability. Because of this interest, methods have been developed to obtain dynamic pressure data in the internozzle region of twin-jet aircraft models during wind tunnel testing. Results from the wind tunnel tests have been analyzed to establish trends, such as the effect of flight variables and engine operating variables, on the dynamic pressure fluctuations. Comparisons have also been made between wind tunnel test results and flight test data.