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Session: PIV/PTV methods and applications IV
Session starts: Thursday 06 November, 11:00
Presentation starts: 11:20
Room: Lecture room A

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Sterre Bult ()
Sedat Tokgoz ()
Said Alhaddad ()
Rudy Helmons ()
Geert Keetels ()

Abstract:
Translating impinging water jets play a pivotal role in processes such as rock cutting, sediment removal, and material surface treatment. These jets combine the dynamics of both impinging jets and jets in crossflow—two well-studied configurations in fluid mechanics. However, when the jet simultaneously translates across a surface while impinging at an angle, the resulting flow field becomes significantly more complex and less understood. This study aims to advance the fundamental understanding of these translating impinging inclined jets by characterizing their flow structures under a range of inclination angles and velocity ratios. We utilize full-scale underwater stereoscopic Particle Image Velocimetry (PIV) alongside three-dimensional Computational Fluid Dynamics (CFD) simulations to resolve the flow dynamics. Findings from this study enhance our ability to predict sediment erosion, pressure loading, and mixing behavior under practical jetting conditions.