The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

B. Cai; Peter D Lee; K. Pericleous

doi:10.1016/j.jcrysgro.2016.07.003

The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

B. Cai, Peter D Lee, K. Pericleous

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Abstract

The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.

Original language	English
Pages (from-to)	270-274
Number of pages	5
Journal	Journal of Crystal Growth
Volume	457
Early online date	7 Jul 2016
DOIs	https://doi.org/10.1016/j.jcrysgro.2016.07.003
Publication status	Published - 1 Jan 2017

Keywords

A. Thermoelectric currents
A1. Crystal structure
A1. Directional solidification
A1. Magnetic fields
A1. Mass transfer

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10.1016/j.jcrysgro.2016.07.003

Kao_JCG_Final_Submit (2)Accepted author manuscript, 9.28 MB

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title = "The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field",

abstract = "The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.",

keywords = "A. Thermoelectric currents, A1. Crystal structure, A1. Directional solidification, A1. Magnetic fields, A1. Mass transfer",

author = "B. Cai and Lee, {Peter D} and K. Pericleous",

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AU - Cai, B.

AU - Lee, Peter D

AU - Pericleous, K.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.

AB - The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.

KW - A. Thermoelectric currents

KW - A1. Crystal structure

KW - A1. Directional solidification

KW - A1. Magnetic fields

KW - A1. Mass transfer

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DO - 10.1016/j.jcrysgro.2016.07.003

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SN - 0022-0248

VL - 457

SP - 270

EP - 274

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

ER -

The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

Abstract

Keywords

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Structural Evolution across multiple time and length scales

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The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Structural Evolution across multiple time and length scales

Cite this