AEROACOUSTIC NOISE MEASUREMENTS IN AERODYNAMIC LOW-SPEED WIND TUNNELS

摘要

Using phased-array microphone technique, we obtained aeroscoustic data in closed test section of conventional aerodynamic wind tunnels. Especially, large-scale testing was able to be carried out, and detailed testing was successfully completed. These aeroacoustic data was able to be discussed with considering the corresponding aerodynamic data directly including quantitative acoustic contribution of airframe elements. This testing technique should be very important feature as the present and future aeroacousitc and aerodynamic design.