Numerical simulation of oscillatory thermocapillary convection in liquid bridges

Zhong Zeng; Hiroshi Mizuseki; Kazuyuki Higashino; Yoshiyuki Kawazoe

doi:10.1117/12.351296

6 July 1999 Numerical simulation of oscillatory thermocapillary convection in liquid bridges

Zhong Zeng, Hiroshi Mizuseki, Kazuyuki Higashino, Yoshiyuki Kawazoe

Proceedings Volume 3792, Materials Research in Low Gravity II; (1999) https://doi.org/10.1117/12.351296
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The floating zone technique is a promising containerless method to realize larger and high-quality crystals of semiconductors under microgravity. Thermocapillary convection, which is caused by the presence of unbalanced surface tension in floating zone, is important for mass and heat transport in crystal growth and is studied with half- zone liquid bridge model in present paper. The free surface of liquid bridge is idealized as non-deformable and adiabatic from the environmental gas. the 3D oscillatory thermocapillary flow is investigated numerically by directly solving incompressible Navier-Stokes, energy and continuity equations with finite volume method. The surface tension is added directly in Navier-Stokes equations. the relationship between Marangoni number Ma and dimensionless frequency f* equals fH²κ^-1 and also flow structures are studied.

Citation Download Citation

Zhong Zeng, Hiroshi Mizuseki, Kazuyuki Higashino, and Yoshiyuki Kawazoe "Numerical simulation of oscillatory thermocapillary convection in liquid bridges", Proc. SPIE 3792, Materials Research in Low Gravity II, (6 July 1999); https://doi.org/10.1117/12.351296

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