Articles | Volume 17, issue 2
https://doi.org/10.5194/ms-17-699-2026
https://doi.org/10.5194/ms-17-699-2026
Research article
 | 
03 Jul 2026
Research article |  | 03 Jul 2026

Multi-objective optimization study on the structure of self-excited oscillating pulse cavitation jet nozzles in submerged environments

Jinhui Fan, Hao Peng, Ke Liu, Yuan Gao, Liang Zhang, and Changkun He

Cited articles

Celik, E. and Rockwell, D.: Shear layer oscillation along a perforated surface: A self-excited large-scale instability, Phys. Fluids, 14, 4444–4447, https://doi.org/10.1063/1.1519531, 2002. 
Du, M., Xie, H., Han, C., and Yu, K.: Numerical investigation of submerged cavitation jet based on stress-blended eddy simulation, J. Mech. Sci. Technol., 38, 6113–6127, https://doi.org/10.1007/s12206-024-1028-6, 2024. 
Fang, Z., Ji, Z., Kang, D., Chen, Y., Zhang, X., Wang, S., and Xiong, T.: Cavitation damage characteristics following marine fouling cleaning by a self-excited oscillation cavitation waterjet, Appl. Ocean Res., 139, 103692, https://doi.org/10.1016/j.apor.2023.103692, 2023. 
Gonzalez, M., Thiel, T., Gooneratne, C., Adams, R., Powell, C., Magana-Mora, A., Ramasamy, J., and Deffenbaugh, M.: Development of an In-Tank Tuning Fork Resonator for Automated Viscosity/Density Measurements of Drilling Fluids, IEEE Access, 9, 25703–25715, https://doi.org/10.1109/ACCESS.2021.3050919, 2021. 
Gao, Y., Zhang, L., Liang, Z., and Zheng, T.: Multi-objective optimization design and study of electromagnetic exciter structure, Chinese Journal of Scientific Instrument, 46, 235–250, https://doi.org/10.19650/j.cnki.cjsi.J2513871, 2025. 
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Short summary
This study uses a relatively novel optimization system to optimize the structure of a self-excited oscillating nozzle. The study identifies inlet radius, lower-nozzle diameter, and cavity length as key variables (combined impact >87 %); achieves a 77.39 % improvement in overall cleaning efficiency through global optimization; and explains the flow field evolution mechanism.
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