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Proceedings Paper

Numerical simulation of oscillatory thermocapillary convection in liquid bridges
Author(s): Zhong Zeng; Hiroshi Mizuseki; Kazuyuki Higashino; Yoshiyuki Kawazoe
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Paper 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.

Paper Details

Date Published: 6 July 1999
PDF: 10 pages
Proc. SPIE 3792, Materials Research in Low Gravity II, (6 July 1999); doi: 10.1117/12.351296
Show Author Affiliations
Zhong Zeng, Tohoku Univ. (Japan)
Hiroshi Mizuseki, Tohoku Univ. (Japan)
Kazuyuki Higashino, Ishikawajima-Harima Heavy Industries Co., Ltd. (Japan)
Yoshiyuki Kawazoe, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 3792:
Materials Research in Low Gravity II
Narayanan Ramachandran, Editor(s)

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