THE INVESTIGATION ON CALCULATING THE EFFECT OF NOISES FROM UNDERWATER VORTEX GENERATOR ON SAIL HULL

摘要：

When ships run at high speed,cavitation is formed in the bulge area.Because cavitation can make big noises,it will be a threat to the sonar.Cavitation can also destroy the blades of propellers.A method is proposed that underwater cavitation is suppressed through vortex generation.The effect of flow noise and radiated noise from vortex generator on sail hull model is investigated.Through the comparison of flow field,we find that vortex generator has changed the transition area of sail hull model.The results indicate that flow noise and radiated noise from underwater vortex generator is only a little,compared to that of sail hull model.The total level of sound radiation power from the model of sail hull and with vortex generator is less than that of sail hull model.Therefore,it is beneficial to suppress the cavitation by vortex generator,when ships run at high speed.

关键词： Vortex generator Flow noise Radiated noise Cavitation

作者: Yong-wei LIU De-jiang SHANG Sheng-feng FU Jun-ming ZHANG Hong-yang CHEN

作者单位: Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin, 150001, P.R. Chin National Key Laboratory on Ship Vibration & Noise, China Ship Development and Design Center,Wuhan, 4

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 97-100

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）