机译:The influence of the grazing flow and sound incidence direction on the acoustic characteristics of double Helmholtz resonators
School of Energy and Power Engineering, Beihang University, Beijing 100191, China;
Research Institute of Aero-Engine, Beihang University, Beijing 100191, China, Key Laboratory of Aerodynamic Noise Control, Mianyang 621000, China;
Helmholtz resonator; Crazing flow; Sound transmission loss; Resonance frequency;