Integrated Geometric Confinement and Ejection-Driven Drainage Flow for Splash Suppession in High-Speed Abrasive Waterjet Machining
Дата
2025
Автори
Науковий керівник
Назва журналу
Номер ISSN
Назва тому
Видавець
Igor Sikorsky Kyiv Polytechnic Institute
Анотація
Abrasive waterjet machining (AWJM) is widely used in aerospace and precision manufacturing due to its cold-cutting nature. However, the residual high-energy jet column penetrating the workpiece frequently impacts the support structure, generating intense splashback that leads to surface contamination and secondary damage. To address this, we propose a composite anti-splash support structure integrating a concave bowl surface with a Venturi-induced negative pressure mechanism. Using VOF multiphase modeling combined with finite element validation, we elucidate the synergistic control mechanism: the curved bowl promotes wall-adherent liquid sliding to reduce radial momentum, while the Venturi throat creates a ~0.15 MPa negative pressure zone that captures droplets into the downstream channel for dissipation. Results demonstrate that compared to conventional supports, the design reduces mixture peak velocity by ~35%, decreases droplet diffusion height by 40%, and curtails radial spread by 30%, effectively constraining contamination areas. Static analysis further confirms the structure maintains high safety margins even under extreme loads. These outcomes not only enhance AWJM processing environments but also provide a validated engineering paradigm for high-speed fluid interaction control. Looking forward, the mechanism resonates with splash suppression needs in photolithography, food packaging, electronic encapsulation, and metal cutting, paving the way for a universal design and evaluation system for splash control in advanced manufacturing.
Опис
Ключові слова
abrasive waterjet machining, splash suppression, Venturi effect, numerical simulation, fluid-structure interaction, абразивна гідроструминна обробка, придушення бризок, ефект Вентурі, чисельне моделювання, взаємодія рідини та поверхні
Бібліографічний опис
Xue, Xianding. Integrated Geometric Confinement and Ejection-Driven Drainage Flow for Splash Suppession in High-Speed Abrasive Waterjet Machining / Xianding Xue, Oleksandr Salenko // Mechanics and Advanced Technologies. – 2025. – Vol. 9, No. 4(107). – P. 483–494. – Bibliogr.: 23 ref.