Numerical Investigation of Self-Propulsion Performance and Noise Level of DARPA Suboff Model

被引:7
作者
Guo, Chunyu [1 ]
Wang, Xu [1 ]
Chen, Chongge [1 ]
Li, Yinghong [1 ]
Hu, Jian [1 ]
机构
[1] Harbin Engn Univ, Coll Shipbldg Engn, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
propeller; self-propulsion; Ffowcs Williams and Hawkings; hydroacoustics; PREDICTION; PROPELLER; SUBMARINE; SOUND;
D O I
10.3390/jmse11061206
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
Propulsion noise is an enduring problem of significant military and environmental importance. Hence, it is crucial to investigate propeller noise characteristics. In this study, the hydrodynamic performance and noise level of the DARPA (Defense Advanced Research Projects Agency) Suboff submarine with the E1619 propeller were analyzed. The hull resistance and propeller hydrodynamics were studied separately, and the numerical results were validated using available experimental values. The self-propulsion point was determined by matching the hull resistance and propeller thrust following ITTC (International Towing Tank Conference) convention. Based on hydrodynamics and acoustic Ffowcs Williams-Hawkings (FW-H) models, the underwater-radiated noise characteristics in the self-propulsion state were simulated. The calculations indicated that the contribution of the quadrupole term in the FW-H equation is not negligible in the high-frequency band. Compared with the noise of open-water propellers, the spectrum of the E1619 propeller in its self-propulsion state is more complex, and the upstream noise is amplified.
引用
收藏
页数:27
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