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

Fang, Zhenlong; Z., Ji,; Ding, Kan; Chen, Yong; Zhang, X.; Wang, S.J.; Xiong, Ting

doi:10.1016/j.apor.2023.103692

Cited by 12 publications

(2 citation statements)

References 40 publications

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“…A scanning electron microscope was used to observe its microscopic appearance [24]. The secondary electron detector (SED) was selected to obtain a clearer and more three-dimensional image of the edge morphology of the cavitation pit [25].…”

Section: Methodsmentioning

confidence: 99%

Study on Dynamic Evolution and Erosion Characteristics of Cavitation Clouds in Submerged Cavitating Water Jets

Cui,

Zhao,

Ding

et al. 2024

JMSE

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The dynamic evolution behavior of submerged water jet cavitation clouds was studied by combining experiments and simulation. The formation, development, shedding, and collapsing process of a void cloud was analyzed by high-speed camera technology, and the influence of jet pressure was studied. Cavitation water jet erosion experiments were carried out on AL6061 specimens with standard cylindrical nozzles, and the correlation between cavitation cloud evolution and material erosion was studied by surface analysis. The results showed that the evolution of a cavitation cloud has obvious periodicity, that one period is about 0.8 ms, and its action region can be divided according to the attenuation rate of the jet velocity of the nozzle axis. The attenuation rate of the jet velocity at the nozzle axis in the central jet action zone is less than or equal to 82.5%, in the mixed action zone greater than 82.5% and less than 96%, and in the cavitation action zone greater than or equal to 96%. The erosion damage characteristics in different regions of the mixed action zone are significantly different.

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Section: Methodsmentioning

confidence: 99%

Study on Dynamic Evolution and Erosion Characteristics of Cavitation Clouds in Submerged Cavitating Water Jets

Cui,

Zhao,

Ding

et al. 2024

JMSE

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“…Marine fouling is a key technical challenge in marine transportation and underwater facilities requiring urgent solutions [ 1 , 2 ]. Marine fouling refers to the colonization and settlement of microorganisms, plants, algae or small animals on surfaces of undersea substrates, seriously affecting the normal operation of ships and undersea facilities [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced antifouling and antibacterial performances of novel UV-curable polysiloxane/microcapsules/Ag composite coatings for marine applications

Liu,

Zheng,

Liu

et al. 2024

R. Soc. Open Sci.

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Marine biological fouling is a widespread phenomenon encountered by various oceanic ships and naval vessels, resulting in enormous economic losses. Herein, novel 4,5-dichloro-2-octyl-isothiazolone@sodium alginate/chitosan microcapsules (DCOIT@ALG/CS) were prepared through composite gel method using DCOIT as core materials, ALG and CS as shells, and CaCl 2 as the cross-linking agent. The formed microcapsules (MCs) with Ag nanoparticles (AgNPs) were then filled in UV-curable polysiloxane (UV-PDMS), followed by UV irradiation to yield UV-PDMS/microcapsules/AgNPs (UV-PDMS/MCs/Ag) composite coatings. The constructed micro–nano dual-scale surface using the MCs and AgNPs improved the antifouling and antibacterial properties of UV-PDMS/MCs/Ag coatings. The as-obtained UV-PDMS/MCs/Ag coatings exhibited a static contact angle of about 160°, shear strength of 2.24 MPa, tensile strength of 3.32 MPa and elongation at break of 212%. The synergistic bacteriostatic effects of DCOIT and AgNPs in UV-PDMS/MCs/Ag coatings resulted in a bactericidal rate of 200 μg ml −1 towards Escherichia coli and Staphylococcus aureus with saturation at 100% within 10 min. In sum, the proposed composite coatings look promising for future marine transportation, pipeline networks and undersea facilities.

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A comprehensive investigation of uncertainties in cavitating waterjet experiments

Usta

2024

Applied Ocean Research

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

Cited by 12 publications

References 40 publications

Study on Dynamic Evolution and Erosion Characteristics of Cavitation Clouds in Submerged Cavitating Water Jets

Study on Dynamic Evolution and Erosion Characteristics of Cavitation Clouds in Submerged Cavitating Water Jets

Enhanced antifouling and antibacterial performances of novel UV-curable polysiloxane/microcapsules/Ag composite coatings for marine applications

A comprehensive investigation of uncertainties in cavitating waterjet experiments

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