학술논문

NUMERICAL STUDY OF G-JITTER DURING DIRECTIONAL SOLIDIFICATION.
Document Type
Article
Source
Numerical Heat Transfer: Part A -- Applications. 5/1/2002, Vol. 41 Issue 6/7, p597-610. 14p.
Subject
*SOLIDIFICATION
*BINARY metallic systems
*BISMUTH alloys
*ENTHALPY
Language
ISSN
1040-7782
Abstract
A study of directional solidification of a weak binary alloy (specifically, Bi-1% Sn) using a fixed grid single domain approach has been undertaken. The enthalpy method is used to solve for the temperature field over the computational domain, including both the solid and liquid phases. The vorticity-stream function formulation is used to describe thermosolutal convection in the liquid region. Results on the solute field and segregation are presented, showing the effects of the periodic disturbances for a range of amplitudes and frequencies (multicomponent) and for actual acceleration data obtained during a space flight. [ABSTRACT FROM AUTHOR]