... 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...

... of Technology, P. R. China. Wuhan, Hubei Province, P.R. China 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...

... passenger transportation cavitation inception number cavitation number marine transportation drag coefficient hydrofoil tip vortex cavitation clearance cavitation inception hydrofoil cavitation inception experimental study vortice cavitation vortex cavitation tip clearance...

... blade performance analysis cavitation number ABSTRACT This paper assesses cavitation inception on an 8.5 m tidal turbine blade by varying design parameters such as pitch angle, rotor speed, and tidal inflow speed. The research method uses JavaFoil to calculate hydrofoil data and AeroDyn...

.... 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...

... 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...

... of cavitation flow, research has been focused to vapor. Flow field under different cavitation numbers and different turbulence models is achieved, and volume of vapor, velocity contour is on the cavitation model and turbulence model. Luo et al (2016) analyzed in detail. It shows that compared with the RANS...

... ABSTRACT The open-water characteristics and cavitation behavior of a rim-driven thruster (RDT) are examined by using the Reynolds-averaged Navier-Stokes (RANS) method with the two-equation turbulence models. The cavitation behavior of the RDT with a cavitation number of σ n =3.0 in uniform...

.... 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...

... 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, called ventilated cavity, is used to solve this problem by supplying the gas to the cavity, and can maintain...

... 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...