Anisotropy of flow and transition between mixing regimes in a physical model of directional solidification

verfasst von
V. Geža, B. Nacke, E. Baake, A. Jakovičs
Abstract

This paper aims to provide an insight into the aspects of turbulence anisotropy in the di- rectional solidfication (DS) method, which is widely used for the growth of photo-voltaic silicon. In DS crucibles, the melt flow is usually stratified due to strong temperature gradients and this leads to anisotropy of ow and turbulence, which is often neglected in turbulence models used in engineering applications. In experimental measurements, a transition between strong and weak mixing regimes is found. The numerical simulations results provide quantitative measures for anisotropy and vertical heat transfer intensity within the range of different Richardson numbers (0.1 - 40).

Organisationseinheit(en)
Institut für Elektroprozesstechnik
Externe Organisation(en)
University of Latvia
Typ
Artikel
Journal
Magnetohydrodynamics
Band
51
Seiten
15-24
Anzahl der Seiten
10
ISSN
0024-998X
Publikationsdatum
2015
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (insg.), Elektrotechnik und Elektronik
Elektronische Version(en)
https://doi.org/10.22364/mhd.51.1.3 (Zugang: Geschlossen)