Prediction of Non-Cavitation Propeller Noise in Time Domain

The blade frequency noise of non-cavitation propeller in a uniform flow is analyzed in time domain. The unsteady loading （dipole source） on the blade surface is calculated by a potential-based surface panel method. Then the time- dependent pressure data is used as the input for Ffowcs Williams-Hawki...

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Bibliographic Details
Published inChina ocean engineering Vol. 25; no. 3; pp. 531 - 538
Main Author 叶金铭 熊鹰 肖昌润 毕毅
Format Journal Article
LanguageEnglish
Published Heidelberg Chinese Ocean Engineering Society 01.09.2011
The Ministry of Education Key Laboratory of High Speed Ship Engineering, Wuhan University of Technology, Wuhan 430033, China%College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China
College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China
Subjects
Blades
Coastal Sciences
Discretization
Engineering
Fluid- and Aerodynamics
Marine
Marine & Freshwater Sciences
Mathematical analysis
Noise
Numerical and Computational Physics
Ocean engineering
Oceanography
Offshore Engineering
Propeller noise
Propellers
Simulation
Time domain
叶片表面
噪声特性
时域分析
时间变化
离散形式
空蚀
螺旋桨噪声
预测
noise
surface panel method
time domain
propeller
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Summary:The blade frequency noise of non-cavitation propeller in a uniform flow is analyzed in time domain. The unsteady loading （dipole source） on the blade surface is calculated by a potential-based surface panel method. Then the time- dependent pressure data is used as the input for Ffowcs Williams-Hawkings formulation to predict the acoustics pressure. The integration of noise source is performed over the true blade surface rather than the nothickness blade surface, and the effect of hub can be considered. The noise characteristics of the non-cavitation propeller and the numerical discretization forms are discussed.
Bibliography:YE Jin-ming XIONG Ying XIAO Chang-run and BI Yi （ a College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China b The Ministry of Education Key Laboratory of High Speed Ship Engineering, Wuhan University of Technology, Wuhan 430033, China）
32-1441/P
propeller; surface panel method, noise; time domain
The blade frequency noise of non-cavitation propeller in a uniform flow is analyzed in time domain. The unsteady loading （dipole source） on the blade surface is calculated by a potential-based surface panel method. Then the time- dependent pressure data is used as the input for Ffowcs Williams-Hawkings formulation to predict the acoustics pressure. The integration of noise source is performed over the true blade surface rather than the nothickness blade surface, and the effect of hub can be considered. The noise characteristics of the non-cavitation propeller and the numerical discretization forms are discussed.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0890-5487
2191-8945
DOI:10.1007/s13344-011-0043-4