aerodynamic sound; aerodynamic noise
Technical term in physics and engineering for sound generated by airflow around objects.
Research is underway to reduce the aerodynamic noise of the Shinkansen.
We measured the aerodynamic sound of the vehicle in a wind tunnel test.
騒音 is general noise; 空力音 is a specific type of noise caused by airflow.
Compound of 空力 (aerodynamics) and 音 (sound).