The purpose of this work is to study the influence of the periodic grooves applied to the surface of the hydrofoil as passive control method on the cavitation dynamics and development. The cavitating flow in the slit channel around NACA 0012 hydrofoil is investigated. An experimental study of the flow was carried out using the high-speed visualization followed by image processing of acquired data. Attached cavity length is substantially reduced by 25% - 30% by using grooves on hydrofoil surface. However, cavitation inception for grooved hydrofoil occurs at almost two-time lower flowrate.
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Tsoy et al. (2024) studied this question.
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