3D numercial simulations of liquid metal jet under a horizontal magnetic field

doi:10.7523/j.issn.2095-6134.2019.04.006

Abstract

Abstract: The liquid metal jet under a horizontal magnetic field plays a significant role in the fusion reactor. 3D numerical simulations of the liquid jet under a horizontal magnetic field are performed in this study, and we mainly study the breakup of the liquid jet at the low Weber numbers under different magnetic fields. The stability of the liquid metal jet changes in the magnetic field. The breakup length of the liquid metal jet grows with the increase of magnetic field. Meanwhile, the droplets form when the liquid metal jet breaks up. The volume of the droplet decreases with the increase of magnetic field. As the magnetic field increases, the wavelength of the interfacial disturbance wave increases due to the Lorentz force. In the case of a large Weber number, the magnetic field exerts a great influence on the interfacial disturbance. At the surface of the liquid metal jet, the 3D dilatational wave and sinuous wave become the 2D ones under the vertical magnetic field. Therefore, the stability of the liquid metal jet is significantly enhanced.

Key words: magnetic field, liquid metal, liquid jet, break up

CLC Number:

O361.3

YU Xingxing, ZHANG Jie, NI Mingjiu. 3D numercial simulations of liquid metal jet under a horizontal magnetic field[J]. , 2019, 36(4): 481-486.

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