Sensitivity to Cavitation and Turbulence Parameters in Asymmetric Nozzles Flow Numerical Simulations

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Cavitating flows are a complex phenomenon involving turbulent flow and phase change, both of which must be considered in its modeling. This study examines the sensitivity of the simulated flow in asymmetric nozzles to the cavitation and turbulence models calibration parameters involved. Building upon previous studies and using the Computational Fluid Dynamics tool Open-FOAM(R), a more detailed investigation was performed based on the k−omega SST turbulence model and the Schnerr-Sauer cavitation models for cases of quite developed cavitation. The results reinforce previous conclusions related to the suitable cavitation and turbulence models calibration on the representation of the cavitated zone.