Sensitivity to cavitation and turbulence models parameters in asymmetric nozzles flow numerical simulations

SANTIAGO MARQUEZ DAMIAN; TOMAS LESCHIUTTA; MIGUEL G. COUSSIRAT

Congreso; MECOM 2024; 2024

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. Buildingupon previous studies and using the Computational Fluid Dynamics tool OpenFOAM(R), a more detailed investigation was performed based on the k−ω 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.