Numerical Simulation of Marangoni Flow in Czochralski Crystal Growth Under Magnetic Field
Marangoni flow driven by surface tension gradients in an industrial Czochralski crystal growth system is studied numerically. Using large eddy simulation (LES), the turbulent flow and melt temperature fluctuations are calculated. The present simulation gives special attention to the implementation of the magnetic field. With Magnetohydrodynamics (MHD) model provided by the commercial CFD code, the influence of the vertical magnetic field on the heat and mass transfer process is investigated. With increasing Hartmann number, the inhibition effect of the Lorentz force is enhanced and the temperature fluctuations are damped, which makes the melt flow more stable. It can be concluded that the introduction of the magnetic field is an effective way to control the crystal growth process.
Czochralski LES magnetic field
X. R. Cen J. M. Zhan
Department of Applied Mechanics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
国际会议
广州
英文
441-443
2011-06-30（万方平台首次上网日期，不代表论文的发表时间）