... are measured under a range of advance ratio from J=0.7 to 1.3. No cavitation conditions are compared to mild and full cavitation operations at cavitation numbers σ=7.5 and σ=1.5 respectively. It is presented a methodology for the estimate of the cavity size. INTRODUCTION Cavitation, which occurs when...

... ABSTRACT The cavitating flow and cavitation-induced noise are evaluated for a seven-blade highly skewed propeller behind the SUBOFF boat under different cavitation numbers by numerical and experimental approaches. The hybrid method of Reynolds-Averaged Navier-Stokes (RANS) solver and Ffowls...

... of hydrofoil with different relative camber under different cavitation numbers are studied by using adaptive mesh refinement. The simulation results show that the adaptive mesh is refined according to the set field function, which can effectively reduce the number of meshes and provide enough mesh resolution...

... cavitation number Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-81-4; ISSN 1098-6189 www.isope.org Tidal Blade Performance...

.... It is necessary to study the variation of podded propulsion under different oblique flow angles, advance coefficients, and cavitation numbers. The boundary element based on potential slow assumption is used to deal with the two-dimensional hydrofoil problem of partial cavitation and then extended to deal...

.... The measurement results clearly revealed a specific tip clearance, when the vortex intensity was the largest and cavitation was most likely to occur. passenger transportation cavitation inception number cavitation number marine transportation drag coefficient hydrofoil tip vortex cavitation...

... inception and evolution process, respectively. The Schnerr- Sauer cavitation model is adopted to model the phase change from water to vapor. Flow field under different cavitation numbers and different turbulence models is achieved, and volume of vapor, velocity contour is analyzed in detail. It shows...

.... The simulating abilities of sheet and cloud cavitation with those three turbulence models are compared in cavitation shape, shedding frequency and so on. It is found that when simulating at the cavitation number σ = 1, Smagorinsky and modified SST k-omega turbulence models perform better at the aspects...

... with the two-equation turbulence models. The cavitation behavior of the RDT with a cavitation number of n =3.0 in uniform and non-uniform flow are then separately explored by using the tow-phase RANS method and the Schnerr-Sauer cavitation model, as well as the sliding mesh technique. It can be observed...

... Abstract Supercavitation is modern technology that can be used to reduce resistance of the underwater vehicle by enveloping a vehicle with bubble. The cavitation number is relatively big when the velocity of the vehicle is low and the depth is deep. In this condition, the artificial cavity...

... hydrofoils. In addition the new hydrofoil has low probability of cavitation making it safe for TCT application. chord length renewable energy rotor blade waterway korea cavitation number cavitation analysis energy resource hydrofoil blade surface shape design hydrodynamic characteristic...

... in reduced mean hydrodynamic loads but increased vibration and a high risk of cavitation erosion (Walker and Bose, 1994). torque coefficient operation cavitation number thrust coefficient thrust coefficient cavitation proceedings rotational speed propeller performance kt 0 reduction...