The development of cavitation sheets over an hydrofoil is driven both by the gas content of the liquid and the nature of the boundary layer that develops along the hydrofoil. For a deaerated water and a flow at high Reynolds number and/or high angle of attack, the boundary layer is fully turbulent and the cavitation sheet develops from the leading edge of the hydrofoil. This flow configuration is rather simple and consequently the majority of the simulations of cavitation sheet have been carried out for such configurations. For low Reynolds number and low angle of attack, the development of the cavitation occurs downstream the boundary layer laminar separation where the boundary layer undergoes a transition from laminar to turbulent nature. The development in the last decades of RANS models including a transition modelling of the boundary layer from laminar to turbulent gives the opportunity to compute the cavitation sheet that develops over an hydrofoil at low angles of attack and a transitional Reynolds number. The present study focuses on a Naca 16 012 at a Reynolds number of 106 and incidences from 0 to 5 degrees.

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