VIVAERO Mach 1.5 tests reveal noise feedback loops from supersonic jets Researchers from the FAMU-FSU College of Engineering and the Florida Center for Advanced Aero-Propulsion , or FCAAP , are helping to solve a safety challenge in military aviation: the extreme noise generated by supersonic jets during takeoff and landing. The research, published in the Journal of Fluid Mechanics , demonstrates a new model for understanding how supersonic jets of air collide with the ground or other structures to create a resonant feedback loop that produces extreme noise that can reach dangerous volume levels. The team examined jets like those found in a type of aircraft known as Short Takeoff and Vertical Landing jets, or STOVL. The ability to operate without a traditional runway gives these aircraft, such as the F-35B Lightning II , critical tactical advantages. But as they descend toward the ground, their exhaust plumes interact with landing surfaces and generate intense noise, often exceeding 1...
