The Generation Methods and Applications of Cavitating Jet by Using Bubble Collapse Energy

Haida Zhang, Chenxing Fan, Luyao Wang, Wenjun Lu and Deng Li ()
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Haida Zhang: Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
Chenxing Fan: Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
Luyao Wang: Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
Wenjun Lu: Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
Deng Li: Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China

Energies, 2024, vol. 17, issue 23, 1-38

Abstract: Cavitation is a dynamic process characterized by the formation, growth, and collapse of vapor or gas vacuoles in liquids or at the liquid–solid interface, initiated by a local pressure drop. This phenomenon releases concentrated energy through microjet impacts and shock waves, leading to a violent exchange of energy with the surrounding environment. While cavitation is often perceived as detrimental, certain aspects can be harnessed for practical applications. Relevant studies have shown that cavitating jets provide high operating efficiencies, reduce energy consumption per unit, and have the potential for waste treatment. This paper presents three types of cavitating jets: central body cavitation, oscillatory cavitation, and shear cavitation. Additionally, the formation process of a cavitating jet and the effects of various factors on jet performance are discussed. Following an in-depth examination of the cavitation phenomena, subsequent chapters explore the applications of cavitating jets in material surface enhancement, cleaning, and energy exploration. Furthermore, recommendations for future research on cavitating jets are provided. This paper provides a comprehensive literature review on cavitating jets.

Keywords: cavitating jet; bubble; cavitation mechanism; cavitation erosion; nozzle geometry (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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