Flow Field and Gas Field Distribution of Non-Submerged Cavitation Water Jet Based on Dual-Nozzle with Concentric Configuration

Luo, Yun; Zang, Jing-Yu; Zheng, Hong‐Xiang

doi:10.3390/w15162904

Cited by 5 publications

(2 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above equation includes the constant, linear, squared, and interaction terms, along with an error term. In Equation (7), n is the number of independent variables; ε is the total error; β 0 , β i , β ii , and β ij are the regression coefficients; and x is the investigation factor.…”

Section: Response Surface Methods Designmentioning

confidence: 99%

“…Relevant studies have shown that under the same conditions of pump pressure and flow rate conditions, the impact pressure of a cavitation jet is 8.6 to 124 times higher than that of a continuous jet [2][3][4]. Cavitation jet technology has wide applications in fields such as oil extraction, cleaning and rust removal, and metal surface strengthening [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of Composite Cavitation Nozzle Parameters Based on the Response Surface Methodology

Huang,

Qiu,

Song

et al. 2024

Water

View full text Add to dashboard Cite

Cavitation is typically observed when high-pressure submerged water jets are used. A composite nozzle, based on an organ pipe, can increase shear stress on the incoming flow, significantly enhancing cavitation performance by stacking Helmholtz cavities in series. In the present work, the flow field of the composite nozzle was numerically simulated using Large Eddy Simulation and was paired with the response surface method for global optimizing the crucial parameters of the composite nozzle to examine their effect on cavitation behavior. Utilizing peak gas-phase volume percent as the dependent variable and the runner diameter, Helmholtz chamber diameter, and Helmholtz chamber length as independent variables, a mathematical model was constructed to determine the ideal parameters of the composite nozzle through response surface methodology. The optimized nozzle prediction had an error of only 2.04% compared to the simulation results, confirming the accuracy of the model. To learn more about the cavitation cloud properties, an experimental setup for high-pressure cavitation jets was also constructed. Impact force measurements and high-speed photography tests were among the experiments conducted. The simulated evolution period of cavitation cloud characteristics is highly consistent with the experimental period. In the impact force measurement experiment, the simulated impact force oscillates between 256 and 297 N, and the measured impact force oscillates between 260 N and 289 N, with an error between 1.5% and 2.7%. The simulation model was verified by experimental results. This study provides new insights for the development of cavitation jet nozzle design theory.

show abstract

Section: Response Surface Methods Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Composite Cavitation Nozzle Parameters Based on the Response Surface Methodology

Huang,

Qiu,

Song

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

Numerical investigation of submerged cavitation jet based on stress-blended eddy simulation

Du,

Xie,

Han

et al. 2024

J Mech Sci Technol

View full text Add to dashboard Cite

Analysis of non-immersed cavitation jet fluid–solid coupling microforming

Yu,

He,

Wang

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

Non-immersed cavitation jets represent an advanced surface treatment technology, characterized by their ability to generate cavitation in an air environment. Owing to their simple structure, these jets have found widespread application. In this study, both numerical and experimental investigations of non-immersed cavitation jets, incorporating fluid–solid coupling, are conducted. The microforming effects on T2 copper foils, induced by non-immersed cavitation jets, are analyzed by comparing simulation results with the experimental data, thereby validating the efficacy of this technique in foil microforming. Additionally, the flow field characteristics of the non-immersed cavitation jet are examined, focusing on the transient distributions of velocity, vortex structures, cavitation bubbles, and pressure at various dimensionless impact distances. The findings confirm that non-immersed cavitation jets are effective for microforming T2 copper foils, with an optimal dimensionless impact distance of 40 under the specified process parameters. The study also reveals that the non-immersed cavitation jet flow is inherently unstable, with the impact distance significantly influencing the evolution of vortex structures and cavitation bubbles. This research offers critical insights into the physical mechanisms underlying non-immersed cavitation jet microforming and provides both a theoretical foundation and experimental guidance for optimizing jet parameters to enhance microforming precision in future applications.

show abstract

Flow Field and Gas Field Distribution of Non-Submerged Cavitation Water Jet Based on Dual-Nozzle with Concentric Configuration

Cited by 5 publications

References 33 publications

Optimization of Composite Cavitation Nozzle Parameters Based on the Response Surface Methodology

Optimization of Composite Cavitation Nozzle Parameters Based on the Response Surface Methodology

Numerical investigation of submerged cavitation jet based on stress-blended eddy simulation

Analysis of non-immersed cavitation jet fluid–solid coupling microforming

Contact Info

Product

Resources

About