CFD predictions of unsteady cavitation for a marine propeller in oblique inflow

نویسندگان

چکیده

In this paper the Potsdam Propeller Test Case is numerically investigated in oblique inflow conditions. We consider three different topics: open water performance curves, cavitation observations, and pressure pulses induced by propeller to ceiling of tunnel. flow case, not uniform from perspective propeller, which results dependency blade loading on rate frequency. The numerical simulations were compared experimental for each case. Additionally, we analyzed unsteady features blades as well peaks wake due collapsing cavities. found that global patterns close agree with tests simulations. agreement tunnel was better non-cavitating shed behind subsequent collapse events a vast increase recorded maximum values. Root produced an order magnitude greater than tip vortex cavitation. Also cavities contributed significant fluctuations blades.

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ژورنال

عنوان ژورنال: Ocean Engineering

سال: 2022

ISSN: ['1873-5258', '0029-8018']

DOI: https://doi.org/10.1016/j.oceaneng.2022.112596