Author(s): Tobias Gianfelice; Patrick Hartwich; Andreas Brummer; Romuald Skoda

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Abstract: A compressible holistic flow simulation method is presented and applied on cloud cavitation at a hydrofoil with a circular leading edge. The hydrofoil flow itself is calculated with a compressible shock-resolving 3D Euler Finite Volume method and a mass transfer cavitation method, neglecting viscous effects. The pipework flow is calculated by a 1D finite difference method of characteristics. Both computational domains are seamlessly two-way coupled by a reflection-free 3D/1D coupling method. The implementation is based on customized OpenFOAM software. Simulation results are validated by in-house experiments and compared to simulation results obtained with conventional boundary conditions. It is shown that the elimination of the falsifying impact of boundary effects by including the entire piping in the simulation domain considerably enhances the prediction of cloud shedding frequency.

DOI: https://doi.org/10.1088/1755-1315/1561/1/012005

Year: 2025