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Experimental investigation on the relation between instantaneous cavitation behavior and cavitating impact on a hydrofoil
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Yan-tao CAO1, 2, Xiao-xing PENG1, 2, Liang-hao XU1, 2, En-hui ZHENG1, 2
Journal of Ship Mechanics | 2024, 28(3) : 392 - 399
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Journal of Ship Mechanics | 2024, 28(3): 392-399
• Hydrodynamics •
Experimental investigation on the relation between instantaneous cavitation behavior and cavitating impact on a hydrofoil
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Yan-tao CAO1, 2, Xiao-xing PENG1, 2, Liang-hao XU1, 2, En-hui ZHENG1, 2
Affiliations
  • 1.National Key Laboratory of Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 214082, China
  • 2.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, China
Published: 2024-03-20 doi: 10.3969/j.issn.1007-7294.2024.03.007
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For high speed ships, impact produced by cavitation is the source of abnormal noise and even cavitation erosion. However, cavitation is actually a complex process containing multi-scale structures coupled with many influencing factors such as cavitation shedding, cavity breaking, local merging and collapse, it is still a tough work to make clear the mechanism for the impact in full-scale cavitating flow and to control its effects. In this paper, cavitation around a twisted hydrofoil was selected to clarify the relation between the cavitating impact and instantaneous cavitation behavior, using a synchronized system composed of a high speed camera and a hydrophone to make the measurements synchronously in time domain, and a soft paint layer to show the cavitation impacted region. The results indicate that for a typical sheet-to-cloud cavitating flow, the high magnitude impulse composed of high frequency component is related to the local collapse and rebound of cloud cavitation shedding from sheet cavity. The study provides the physical understanding and control of cavitation impact in the industrial field.

hydrofoil  /  cavitation  /  impact  /  experimental investigation
Yan-tao CAO, Xiao-xing PENG, Liang-hao XU, En-hui ZHENG. Experimental investigation on the relation between instantaneous cavitation behavior and cavitating impact on a hydrofoil[J]. Journal of Ship Mechanics, 2024 , 28 (3) : 392 -399 . DOI: 10.3969/j.issn.1007-7294.2024.03.007
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.03.007
  • Receive Date：2023-09-19
  • Online Date：2026-03-21
  • Published：2024-03-20
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  • Received：2023-09-19
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Affiliations
    1.National Key Laboratory of Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 214082, China
    2.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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