Experimental verification of turbulent flow noise spectrum on a submerged body
When a hydrofoil ship plies at high speed, there exist possibilities of collision with ocean mammals dwelling near the surface; these accidents have been reported frequently. An active sonar system, located within the hydrofoil structure remaining underwater providing the lift for the vessel, can be used to detect these obstacles. The proper functioning of the sonar system depends on its ability to reject noise and pick up the target signal. In case of high speed vessels, flow induced noise is the predominant contributor to noise. Accurate prediction enables one to filter out the noise and thus a model for the turbulent flow noise is needed. In this paper, we measured the flow induced noise on a hydrofoil of an operating ship with two flush-mounted hydrophones. The measured results are compared with other investigations and they show similarity to each other.
Jiyong Park Woojae Seong Keunhwa Lee Eungkyu Park Youngsuk Oh
Seoul National University,Seoul,Korea Sonartech Inc,Busan,Korea
国际会议
The 10th Western Pacific Acoustics Conference(第十届西太平洋声学会议WESPAC X)
北京
英文
1-6
2009-09-21（万方平台首次上网日期，不代表论文的发表时间）