Details
| Original language | English |
|---|---|
| Pages (from-to) | 895-898 |
| Number of pages | 4 |
| Journal | Journal of crystal growth |
| Volume | 401 |
| Early online date | 31 Dec 2013 |
| Publication status | Published - 1 Sept 2014 |
Abstract
This study is devoted to the experimental investigation of the turbulent melt motion in a square crucible where the flow is created by Lorentz forces generated by an external AC magnetic field. As a strong vertical thermal gradient is present in melt during a directional solidification process, a stratification effect takes place and motion in the vertical direction is damped by buoyancy forces. Such a situation arises if density of fluid layers decreases with height. Experimental velocity and temperature measurements are conducted. Transient effects, like collapse of stratification, are observed experimentally. The significance of stratification in the directional solidification method is discussed.
Keywords
- A1. Directional solidification, A1. Fluid flows, A1. Magnetic fields, A1. Stirring
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Inorganic Chemistry
- Materials Science(all)
- Materials Chemistry
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In: Journal of crystal growth, Vol. 401, 01.09.2014, p. 895-898.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of the Richardson number on em force driven flow structures in square-shaped crucible
AU - Geza, V.
AU - Nacke, B.
AU - Baake, E.
AU - Jakovics, A.
PY - 2014/9/1
Y1 - 2014/9/1
N2 - This study is devoted to the experimental investigation of the turbulent melt motion in a square crucible where the flow is created by Lorentz forces generated by an external AC magnetic field. As a strong vertical thermal gradient is present in melt during a directional solidification process, a stratification effect takes place and motion in the vertical direction is damped by buoyancy forces. Such a situation arises if density of fluid layers decreases with height. Experimental velocity and temperature measurements are conducted. Transient effects, like collapse of stratification, are observed experimentally. The significance of stratification in the directional solidification method is discussed.
AB - This study is devoted to the experimental investigation of the turbulent melt motion in a square crucible where the flow is created by Lorentz forces generated by an external AC magnetic field. As a strong vertical thermal gradient is present in melt during a directional solidification process, a stratification effect takes place and motion in the vertical direction is damped by buoyancy forces. Such a situation arises if density of fluid layers decreases with height. Experimental velocity and temperature measurements are conducted. Transient effects, like collapse of stratification, are observed experimentally. The significance of stratification in the directional solidification method is discussed.
KW - A1. Directional solidification
KW - A1. Fluid flows
KW - A1. Magnetic fields
KW - A1. Stirring
UR - http://www.scopus.com/inward/record.url?scp=84906960251&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2013.12.041
DO - 10.1016/j.jcrysgro.2013.12.041
M3 - Article
AN - SCOPUS:84906960251
VL - 401
SP - 895
EP - 898
JO - Journal of crystal growth
JF - Journal of crystal growth
SN - 0022-0248
ER -