Prediction of Non-Cavitation Propeller Noise in Time Domain

Prediction of Non-Cavitation Propeller Noise in Time Domain

时间:2012-07-18 交通运输论文
Abstract: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 timedependent 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. 作者: Author: YE Jin-ming[1]  XIONG Ying[2]  XIAO Chang-run[2]  BI Yi[2] 作者单位: College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China;The Ministry of Education Key Laboratory of High Speed Ship Engineering, Wuhan University of Technology, Wuhan 430033, ChinaCollege of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China 期 刊: 中国海洋工程(英文版)   ISTICEISCI Journal: China Ocean Engineering 年,卷(期): 2011, 25(3) 分类号: U664.33 Keywords: propeller    surface panel method    noise    time domain    机标分类号: TV2 TK4 机标关键词: uniform flow    noise source    integration    input    time    data    hub 基金项目: Prediction of Non-Cavitation Propeller Noise in Time Domain[期刊论文]  中国海洋工程(英文版) --2011, 25(3)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 p...