Numerical Investigation of Acoustic Wave Generation from Individual Propellers of a Multicopter

摘要

In this study, we try to investigate noise emissions of a multicopter during flights. To identify noise emissions from individual propellers of a multicopter, we had several test flights to measure RPMs of propellers. From the experimental thrust and RPM variation information of propellers, we took numerical simulations for aerodynamic and aeroacoustic characteristics for various flight conditions. We compared noise emissions of individual propellers when a multicopter is in hover with various weights and forward flight with various speeds.