Author(s): Zhenhui Liu; Magnus Haese; Romuald Skoda

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Keywords: No Keywords

Abstract: Cloud cavitation on a hydrofoil with circular leading edge is investigated by a turbulence scale-adaptive 3D simulation using a compressible, pressure-based, homogeneous mixture approach, and a mass transfer model. Vapour-liquid equilibrium is approached by increased mass transfer rates and small time steps. Beyond re-entrant-jet-driven shedding, bubbly-shock-wave-induced shedding is resolved. The results also indicate a hybrid case, in which both mechanisms can coexist within a single shedding cycle. The occurrence probabilities of the three shedding modes, re-entrant jet, bubbly shock wave, and the hybrid case, are quantified for a variation of cavitation number.

DOI: https://doi.org/10.1088/1755-1315/1561/1/012008

Year: 2025