Cavitation damage characteristics following marine fouling cleaning by a self-excited oscillation cavitation waterjet

被引：20

作者：

Fang, Zhenlong ^{[1
,2
,3
,4
]}

Ji, Zitao ^{[1
,2
,3
]}

Kang, Ding ^{[1
,3
]}

Chen, Yong ^{[1
,2
,3
]}

Zhang, Xiuzhan ^{[5
]}

Wang, Siao ^{[5
]}

Xiong, Ting ^{[1
,2
,3
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Maritime Technol & Safety, Wuhan 430063, Peoples R China

[2] Wuhan Univ Technol, Sch Transportat & Logist Engn, Wuhan 430063, Peoples R China

[3] Wuhan Univ Technol, Sanya Sci & Educ Innovat Pk, Sanya 572025, Peoples R China

[4] Univ Paris Cite, LIED, CNRS, UMR 8236, F-75006 Paris, France

[5] China Merchants Marine & Offshore Res Inst Co Ltd, Shenzhen 518067, Peoples R China

来源：

APPLIED OCEAN RESEARCH | 2023年 / 139卷

基金：

中国国家自然科学基金;

关键词：

Ship fouling; Orthogonal experiment; Erosion; Self-excited cavitating waterjet; GEOMETRICAL PARAMETERS; EROSION; BEHAVIOR; IMPACT; FLOW; JET;

D O I：

10.1016/j.apor.2023.103692

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Marine fouling attached to the hull of a ship will reduce its economic performance and therefore regular cleaning is required. Cavitation jets are a widely used and effective cleaning method for removing marine fouling. In this study, an orthogonal experiment was conducted to investigate marine fouling cleaning using a self-excited oscillation cavitation waterjet by simulating the adhesion of marine fouling to the hull. The significance of the incident angle & theta;, jet pressure P, and standoff distance R on the damage area and surface roughness were studied, and the damage caused by the cavitation waterjet was analyzed by scanning electron microscopy (SEM). It was found that, a) Damage to the surface of samples was minimized by spraying at a 90 degrees incident angle and ensuring a 16 MPa jet pressure with a 25 mm standoff distance. b) The jet impact zone had the most severe damage, with samples displaying two forms of damage: fatigue failure and plastic deformation under the action of the cavitation waterjet. The results of this study provide a theoretical basis and parameter guidance for optimizing marine fouling cleaning.

引用

页数：13