TY - GEN
T1 - Investigation on effect of rotor blades on the sound propagation
AU - Wang, Xiaoyu
AU - Zhou, Di
AU - Sun, Xiaofeng
PY - 2015
Y1 - 2015
N2 - In this paper, a new model including the influence of rotor blades on sound propagation will be set up to calculate the rotor and stator interaction noise. Firstly, three-dimensional lifting surface theories are used to describe the sound and vortex propagation through a single blade row. Secondly, the basic model in finite element about sound generation and propagation will be set up. Finally, the relation of acoustic wave and vortex wave between rotor blades row and stator row is studied by using TEM (Transfer Element Method), in which we set up a matching surface in order to determine the sound field and unsteady loading on rotor blades and stator vanes. The prediction of rotor blades and stator vanes interaction will be given by the TEM model. Various examples are presented here to illustrate the effects of number of stator vanes. It is found that rotor blades have a good "shield" effect on the upstream sound. Other results will show that the interaction between rotor and stator has a great impact on the unsteady loading of blades.
AB - In this paper, a new model including the influence of rotor blades on sound propagation will be set up to calculate the rotor and stator interaction noise. Firstly, three-dimensional lifting surface theories are used to describe the sound and vortex propagation through a single blade row. Secondly, the basic model in finite element about sound generation and propagation will be set up. Finally, the relation of acoustic wave and vortex wave between rotor blades row and stator row is studied by using TEM (Transfer Element Method), in which we set up a matching surface in order to determine the sound field and unsteady loading on rotor blades and stator vanes. The prediction of rotor blades and stator vanes interaction will be given by the TEM model. Various examples are presented here to illustrate the effects of number of stator vanes. It is found that rotor blades have a good "shield" effect on the upstream sound. Other results will show that the interaction between rotor and stator has a great impact on the unsteady loading of blades.
UR - https://www.scopus.com/pages/publications/84971325320
M3 - 会议稿件
AN - SCOPUS:84971325320
T3 - 22nd International Congress on Sound and Vibration, ICSV 2015
BT - 22nd International Congress on Sound and Vibration, ICSV 2015
PB - International Institute of Acoustics and Vibrations
T2 - 22nd International Congress on Sound and Vibration, ICSV 2015
Y2 - 12 July 2015 through 16 July 2015
ER -