[PDF] Top 20 Experimental and numerical analysis of cavitating flow around a hydrofoil

... prismatic hydrofoil with the modified NACA ...inlet flow to the test section using the acoustic ...CFD analysis of the cavitation phenomena on the hydrofoil as well as the numerically ... See full document

... Clearly, shedding frequencies are underpredicted by our model constants, but the general trend is in good agree- ment with the experimental data and leaves room for fu- ture improvement. Manual parameter variation ... See full document

... In the past, cavitation erosion has been analysed with this density-based flow algorithm and barotropic cavitation model for case of hydrodynamic cavitation, e.g. for hydrofoils [21], axisymmetric nozzles [11; 12] ... See full document

... The hydrofoil was observed through the Plexiglas on the two perpendicular ...fixed hydrofoil and a dynamometer accuracy of ...the hydrofoil. The measurements were performed at different flow ... See full document

... Extensive experimental programs involving hydrofoils [7,9,10,22,28] accompanied the development of the analytical theory running through to the ...high-speed hydrofoil borne craft has been ... See full document

... for numerical models, because numerical uncertainties of the models produce significant differences in the results ...Many numerical solutions were reported in the literature about flow motions ... See full document

... complex flow phenomenon including unsteady characteristics, turbulence, gas-liquid two-phase ...a numerical inves- tigation on comparing the simulation performance of three different models in ... See full document

... mass flow rate and velocity near the gap were ...the flow in the suction chamber of an oil free compressor with water injection were reported by Kovacevic et ...the flow as screw ... See full document

... concluded that reducing blade thickness increased deflection, thrust and torque but did not alter efficiency. This work considered the effect of geometric non-linearity. Young developed a fully coupled 3D BEM combined ... See full document

... accurate analysis of sailing yacht dynamics requires analysis of a wide variety of boundary conditions and degrees of freedom ...on experimental research in the past, and in the future it will be the ... See full document

... Though hot forging dies are subject mostly to forces acting in the direction o f moving tool/slider, some side forces are also developed in the die cavity according to the flow o f material in various directions. ... See full document

... Stickland et al (1996) in their paper describe mapping the flow field in a mixed flow impeller by PIV and image de- rotation. However, the images analysed for this paper were acquired by wet film high-speed ... See full document

... project Numerical simulation of vortex rope in a Francis turbine started, our computer capacities were limited to the cluster with 32 dual core ...all analysis of case 2 the new supercomputer cluster was ... See full document

... the flow characteristics and the formation process of cavitation in twin-screw pumps, three-dimensional CFD (Computational Fluid Dynamics) numerical analysis has been carried ...two-phase ... See full document

... to 2.0 N for 7.5 to 20 m/s, which is in accord with the measurements. If the result for a minimal velocity of 5 m/s is added to the discussion, then the drag force has a minimum at 7.5 m/s. This is only to be expected, ... See full document

... PIV analysis software (Koncerto II, Seika Digital ...induced around the pillar was obtained by averaging the flow fields of the 60 rotational ... See full document

... To meet demands posted by Euler turbine equation at the turbine inlet, i.e. at the inlet of the spiral casing, a uniform velocity distribution is necessary. However at the hydro electric power plants, due to the bending ... See full document

... Swirling flows are very important in many industrial applications, especially in those cases, when mixing needs to be enhanced (like in swirl combustors) or in case, where centrifugal forces can be utilized for example ... See full document

... of experimental re- sults available, has enabled the numerical modelling of cavitational ...for flow- field analyses in the fixed point of 3D flow, for each individual phase ([2] and ... See full document

... detailed experimental research (both the visualiza- tions and velocity measurements) is very complicated due to the presence of large amount of cavitation ...the flow and cavitation phenomena on the tunnel ... See full document