Flow and crystallization in two-layer liquid systems with and without a magnetic field

Alexander I. Feonychev; Narayanan Ramachandran; Viktor I. Pokhilko; Konstantin Mazuruk

doi:10.1117/12.277730

7 July 1997 Flow and crystallization in two-layer liquid systems with and without a magnetic field

Alexander I. Feonychev, Narayanan Ramachandran, Viktor I. Pokhilko, Konstantin Mazuruk

Proceedings Volume 3123, Materials Research in Low Gravity; (1997) https://doi.org/10.1117/12.277730
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Flow and heat and mass transfer in a two-layer liquid system is investigated when the layers are subjected to a constant magnetic field. The physical system consists of two immiscible liquids in a layer configuration with a free surface and a boundary between layers simulating two crystal growth methods, namely, floating zone and horizontal zone melting. Mass transfer effects due to crystallization of one of the layers is also considered. The diversity of flows is reduced to three types depending on (1) the dominance of the free surface effects of the top layer, (2) a balance between the thermocapillary effect on the free surface and the interface effect between the two layers, or (3) the dominance of interfacial effects, in determining the system thermo-fluid characteristics. The use of an additional liquid layer atop the basic crystallizing layer leads to a reduction of the radial dopant inhomogeneity in comparison to the one-layer case. The effect an externally imposed magnetic field on dopant distribution in this two-layer configuration is ambiguous and depends on its direction and intensity resulting in the necessity of optimizing the applied magnetic field for a specific situation.

Citation Download Citation

Alexander I. Feonychev, Narayanan Ramachandran, Viktor I. Pokhilko, and Konstantin Mazuruk "Flow and crystallization in two-layer liquid systems with and without a magnetic field", Proc. SPIE 3123, Materials Research in Low Gravity, (7 July 1997); https://doi.org/10.1117/12.277730

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available