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<p>Despite extensive industrial adoption for its precision cutting capabilities and environmental compatibility, waterjet technology remains fundamentally constrained in cavitation efficiency by structural deficiencies in resonance manipulation within conventional mono-chamber configurations. To overcome this, we propose a dual-chamber self-resonating oscillatory cavitation waterjet (SOCW) nozzle, integrating an Organ-pipe resonator and Helmholtz chamber—a hybrid design unexplored in prior studies. Through experimental and parametric analyses, we systematically compared single- and dual-chamber nozzles, quantified the effects of five structural parameters (<i>D</i><sub>1</sub>/<i>D</i><sub>2</sub>, <i>D</i><sub>2</sub>/<i>D</i><sub>3</sub>, <i>D</i><sub>5</sub>/<i>D</i><sub>3</sub>,<i> L</i><sub>2</sub>, and <i>D</i><sub>4</sub>) on pressure dynamics and erosion performance, and identified optimal configurations. Results demonstrate that the dual-chamber design elevates pressure peaks by 17.11%, amplifies pressure fluctuations by 13.36%, and enhances erosion depth/area by 103% and 61.16%, respectively, outperforming single-chamber counterparts. Crucially, we reveal <i>D</i><sub>1</sub>/<i>D</i><sub>2</sub> = 2.8 as the dominant parameter for pressure optimization and <i>D</i><sub>2</sub>/<i>D</i><sub>3</sub> = 2.0 for maximizing erosion—a dual-functionality enabling application-specific tuning. This study contributes (1) the first dual-resonance SOCW nozzle design, (2) a systematic parameter optimization framework bridging fluid dynamics and engineering, and (3) mechanistic insights into parameter trade-offs, advancing high-efficiency waterjets for precision manufacturing and environmental applications.</p>

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Enhancement strategies for advanced performance and structural optimization of a dual-chamber self-resonant oscillatory cavitation waterjet system

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Xin Wang,
  • Yong Huang,
  • Siqi Wu,
  • Dezheng Li,
  • Yang Chen,
  • Yong Kang,
  • Yi Hu,
  • Xiaochuan Wang,
  • Deng Li,
  • Yiwei Liu

摘要

Despite extensive industrial adoption for its precision cutting capabilities and environmental compatibility, waterjet technology remains fundamentally constrained in cavitation efficiency by structural deficiencies in resonance manipulation within conventional mono-chamber configurations. To overcome this, we propose a dual-chamber self-resonating oscillatory cavitation waterjet (SOCW) nozzle, integrating an Organ-pipe resonator and Helmholtz chamber—a hybrid design unexplored in prior studies. Through experimental and parametric analyses, we systematically compared single- and dual-chamber nozzles, quantified the effects of five structural parameters (D1/D2, D2/D3, D5/D3, L2, and D4) on pressure dynamics and erosion performance, and identified optimal configurations. Results demonstrate that the dual-chamber design elevates pressure peaks by 17.11%, amplifies pressure fluctuations by 13.36%, and enhances erosion depth/area by 103% and 61.16%, respectively, outperforming single-chamber counterparts. Crucially, we reveal D1/D2 = 2.8 as the dominant parameter for pressure optimization and D2/D3 = 2.0 for maximizing erosion—a dual-functionality enabling application-specific tuning. This study contributes (1) the first dual-resonance SOCW nozzle design, (2) a systematic parameter optimization framework bridging fluid dynamics and engineering, and (3) mechanistic insights into parameter trade-offs, advancing high-efficiency waterjets for precision manufacturing and environmental applications.