Cavitation and Bubble Dynamics, 2nd Edition

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Flow of Multi-Phase Fluids and Granular Materials".

Deadline for manuscript submissions: 28 February 2027 | Viewed by 953

Special Issue Editor

Heilongjiang Province Key Laboratory of Nuclear Power System & Equipment, Harbin Engineering University, Harbin 150001, China
Interests: multiphase flow; bubble dynamics; fluid-structure coupling dynamics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are delighted to introduce the second edition of this Special Issue, titled "Cavitation and Bubble Dynamics, 2nd Edition". Cavitation and bubble dynamics play a crucial role in various fields and engineering applications. For instance, in marine engineering, ships and submarines encounter cavitation issues during underwater operations, making it essential to comprehend and control bubble dynamics in order to achieve enhanced navigation safety and performance. In energy engineering, the behavior of bubbles in turbine machinery and combustion processes directly influences efficiency and reliability. The medical field is also intimately associated with ultrasound therapy and imaging in relation to bubble dynamics. Thus, in-depth research on cavitation and bubble dynamics is crucial for advancements and innovation in these domains.

In this Special Issue, our aim is to provide readers with comprehensive insights into the criticality, field applications, research methods, and recent advances in cavitation and bubble dynamics. We believe that through collaborative efforts and in-depth research, we can motivate the development of the cavitation and bubble dynamics field, bringing forth further innovation and discoveries in this engineering and scientific domain.

The potential topics of this Special Issue include, but are not limited to, the following:

  • Cavitation and bubble dynamics in hydraulic machinery, biomedical engineering, the chemical and process industry, etc.;
  • Modeling and simulation of bubble dynamics;
  • Measurement techniques for cavitation and bubble dynamics;
  • Theoretical and experimental studies of cavitation phenomena;
  • Fluid–structure interaction induced by cavitation and bubbles;
  • Shock waves and microjets generated by cavitation;
  • Cavitation erosion;
  • Micro-nano bubbles and their applications;
  • Fundamentals of physics of cavitation;
  • Dynamics of multiple bubbles and bubble clusters;
  • Control and applications of cavitation and bubble dynamics.

Dr. Rui Han
Guest Editor

Manuscript Submission Information

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Keywords

  • cavitation erosion
  • bubble interactions
  • fluid-structure interaction
  • shock wave
  • vapor bubbles

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Published Papers (1 paper)

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Research

34 pages, 9344 KB  
Article
A Study on the Evolution of Flow Regime in a Gas-Assisted Submerged High-Pressure Water Jet
by Hao Yan, Caixia Zhang, Wenhao Li and Ning Chen
Fluids 2026, 11(1), 15; https://doi.org/10.3390/fluids11010015 - 31 Dec 2025
Viewed by 589
Abstract
High-pressure water jet technology is widely utilized for cleaning marine artificial structures due to its portability, efficiency, and environmental friendliness, yet traditional jets underperform in submerged environments. Gas-assisted water jet technology has predominantly been applied to rock breaking—where vertical forces are prioritized—with insufficient [...] Read more.
High-pressure water jet technology is widely utilized for cleaning marine artificial structures due to its portability, efficiency, and environmental friendliness, yet traditional jets underperform in submerged environments. Gas-assisted water jet technology has predominantly been applied to rock breaking—where vertical forces are prioritized—with insufficient research into flow regime evolution, limiting its utility for cleaning applications. This study introduces a supercavitating high-pressure water jet aimed at improving underwater cleaning efficiency while lowering economic costs. Employing ANSYS Fluent—with the RNG k-ε turbulence model and mixture model—validated via high-speed camera experiments, we explored the flow regime evolution of both unconstrained and semi-constrained impinging jets. The key findings of this paper are as follows: The cavity evolves with a periodic “necking-bubbling” pattern, whose intensity correlates positively with gas outlet velocity and supply rate; moderate gas supply—with 120 L/min identified as optimal through orthogonal analysis—effectively delays water jet breakup. For semi-constrained jets, the wall-adjacent gas flow also exhibits “necking-bubbling”; small-angle impact (30° versus 60°) reduces near-wall shear vortices, enhancing gas cavity stability on the target plate. This study bridges the gap between gas-assisted jet technology and underwater cleaning requirements, offering theoretical insights and optimized parameters for efficient, low-cost marine structure cleaning. It thereby supports the sustainable exploitation of marine resources and the stable operation of key marine facilities. Full article
(This article belongs to the Special Issue Cavitation and Bubble Dynamics, 2nd Edition)
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