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- W2362063668 abstract "The research has been based on CFD software Fluent and cavitation features generated by ultrasonic vibration in molten steel have been simulated through programming UDF.Results showed that without cavitation model,positive pressure and negative pressure were present in molten steel and positive pressure reached 5.5Mpa while negative pressure-5.4Mpa;with cavitation model,there was only positive pressure and the pressure value decreased obviously.Maximum value of pressure stabilized the value between 0.10Mpa and 0.12Mpa.Minimum value of pressure stabilized the value between 0.08Mpa and 0.1Mpa.Changes of maximum value of pressure had a contrary trend with changes of minimum value of pressure.In every moment,there were some regions without separating out gas in molten steel.With cavitation model,curve of variations of integral value of absolute pressure increased slightly,and variations of gas volume fraction had a contrary trend with variations of integral value of absolute pressure.Under-relaxation factors had some effects on accuracy of calculation results of cavitation simulation though the effects were small.Turbulent kinetic energy,turbulent dissipation rate,density and body forces were sensitive to low-pressure fluid.Changes of turbulent model and wall function had no effects on calculation results of cavitation simulation.No-condensable gas in existence could be infavor of producing cavitation." @default.
- W2362063668 created "2016-06-24" @default.
- W2362063668 creator A5015836463 @default.
- W2362063668 date "2011-01-01" @default.
- W2362063668 modified "2023-09-25" @default.
- W2362063668 title "Numerical Simulation of Macroscopic Ultrasonic-Cavitation Features in Molten Steel" @default.
- W2362063668 hasPublicationYear "2011" @default.
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