NDLI: Numerical simulation using the bubble size distribution model of cryogenic cavitation around an axial helical inducer

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Numerical simulation using the bubble size distribution model of cryogenic cavitation around an axial helical inducer

Content Provider	Scilit
Author	Ito, Y. Zheng, X. Nagasaki, T.
Copyright Year	2019
Description	Journal: Iop Conference Series: Earth and Environmental Science A mathematical model using a bubble size distribution was developed by the author for a cryogenic high-speed cavitating flow in turbomachinery. In this model, bubble growth/decay is solved for each class of the bubble mass (as an accurate expression of bubble size) when bubbles with various masses mix in the same spatially discretized calculation region. The bubble growth/decay calculations employ a combination of two rigorous methods: a Rayleigh–Plesset equation for the bubbles' oscillation, and a heat conduction equation in a thermal boundary layer around a bubble to evaluate the mass rate of evaporation or condensation. This mathematical model was coded using the OpenFOAM C++ toolbox, and a numerical simulation was conducted for a 3D rotational inducer in a cryogenic fluid, the results of which showed that bubbles of a certain specified size were distributed at certain regions on the inducer. This study demonstrated that the mathematical model of cavitation exhibits potential to contribute to fidelity in simulation for turbomachinery considering a fluid with strong thermodynamic effect.
Related Links	https://iopscience.iop.org/article/10.1088/1755-1315/240/6/062015/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/240/6/062015
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	6
Volume Number	240
Language	English
Publisher	IOP Publishing
Publisher Date	2019-03-27
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Acoustics and Ultrasonics Numerical Simulation
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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