TY  - EJOU
AU  - Huang, Jun  
AU  - Zhang, Chaopu  
AU  - Xiang, Song  
AU  - Yang, Liu  
AU  - Yi, Mingxu  

TI  - Computation of Aerodynamic Noise Radiated From Open Propeller Using Boundary Element Method
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2015
VL  - 108
IS  - 5
SN  - 1526-1506

AB  - In order to accurately predict the aerodynamic noise of the propeller, a hybrid method combining Computational Fluid Dynamics (CFD) method with Boundary Element Method (BEM) is developed in this paper. The calculation includes two steps: firstly, the unsteady viscous flow around the propeller is calculated using the CFD method to acquire the noise source information; secondly, the radiated sound pressure is calculated using BEM method in the frequency domain. In comparison with the experimental results from wind tunnel, the calculated results of aerodynamic performance are rather desirable. The simulation and experimental results of aerodynamic noise are well fitted. The directivity of sound pressure levels (SPLs) of propeller noise is shown in this paper. Simulation shows that the method can effectively calculate aerodynamic noise of the propeller. The acoustic analysis draws some meaningful conclusions.
KW  - Propeller
KW  -  Aerodynamic noise
KW  -  Computational fluid dynamics (CFD)
KW  -  Boundary element method (BEM)
KW  -  SPLs
KW  -  BPF

DO  - 10.3970/cmes.2015.108.315