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

Allgemeine Physik und Astronomie, Elektrotechnik und Elektronik

Elektronische Version(en)

https://doi.org/10.22364/mhd.51.1.3 (Zugang: Geschlossen)