Cavitation Prediction of Ship Propeller Based on Temperature and Fluid Properties of Water
TLDR
In this article, numerical predictions of a cavitating propeller in open water and uniform inflow are presented with computational fluid dynamics (CFD) Simulations were carried out using Ansys Numerical simulation based on Reynolds-averaged Navier-Stokes equations for the conservative form and the Rayleigh-Plesset equation for the mass transfer cavitation model was conducted with turbulent closure of the fully turbulent K-epsilon (k-e) model and shear stress transport (SST) The influence of temperature on cavitation extension was investigated between 0 and 50 °Abstract:
Cavitation is a complex phenomenon to measure, depending on site conditions in specific regions of the Earth, where there is water with various physical properties The development of ship and propulsion technology is currently intended to further explore territorial waters that are difficult to explore Climate differences affect the temperature and physical properties of water on Earth This study aimed to determine the effect of cavitation related to the physical properties of water Numerical predictions of a cavitating propeller in open water and uniform inflow are presented with computational fluid dynamics (CFD) Simulations were carried out using Ansys Numerical simulation based on Reynolds-averaged Navier–Stokes equations for the conservative form and the Rayleigh–Plesset equation for the mass transfer cavitation model was conducted with turbulent closure of the fully turbulent K-epsilon (k-e) model and shear stress transport (SST) The influence of temperature on cavitation extension was investigated between 0 and 50 ° C The results obtained showed a trend of cavitation occurring more aggressively at higher water temperature than at lower temperatureread more
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References
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A preconditioned navier-stokes method for two-phase flows with application to Cavitation prediction
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Numerical Predictions of Cavitating Flow around Model Scale Propellers by CFD and Advanced Model Calibration
Mitja Morgut,Enrico Nobile +1 more
TL;DR: In this paper, numerical predictions of the cavitating flow around two model scale propellers in uniform inflow are presented and discussed using a commercial CFD solver, which is used to evaluate the influence of three widespread mass transfer models on the accuracy of the numerical predictions.
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Temperature Effects in Cavitation Damage
TL;DR: In this article, the cavitation damage was studied for several materials over a range of temperatures in the cavitating liquid from 0 C to 90 deg C. The cavitating liquids used were distilled water, distilled water buffered to pH 8, and a 3 percent solution of NaCl in distilled water.