Details
| Original language | English |
|---|---|
| Article number | 532 |
| Journal | Metals |
| Volume | 10 |
| Issue number | 4 |
| Publication status | Published - 20 Apr 2020 |
Abstract
Non steady applied magnetic field impact on a liquid metal has good prospects for industry. For a better understanding of heat and mass transfer processes under these circumstances, numerical simulations are needed. A combination of finite elements and volumes methods was used to calculate the flow and solidification of liquid metal under electromagnetic influence. Validation of numerical results was carried out by means of measuring with ultrasound Doppler velocimetry technique, as well as with neutron radiography snapshots of the position and shape of the solid/liquid interface. As a result of the first part of the work, a numerical model of electromagnetic stirring and solidification was developed and validated. This model could be an effective tool for analyzing the electromagnetic stirring during the solidification process. In the second part, the dependences of the velocity pulsation amplitude and the melt velocity maximum value on the magnetic field pulsation frequency are obtained. The ability of the pulsating force to develop higher values of the liquid metal velocity at a frequency close to the MHD resonance was found numerically. The obtained characteristics give a more detailed description of the electrically conductive liquid behaviour under action of pulsating traveling magnetic field.
Keywords
- Electromagnetic stirring, Forced convection, Gallium, Liquid metal, Numerical analysis, Pulsed magnetic field, Solidification, Traveling magnetic field
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
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In: Metals, Vol. 10, No. 4, 532, 20.04.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Liquid Metal Flow Under Traveling Magnetic Field—Solidification Simulation and Pulsating Flow Analysis
AU - Shvydkiy, Evgeniy
AU - Köppen, Diana
AU - Baake, Egbert
N1 - Funding Information: Funding: The work was supported by the Russian President scholarship for study abroad.
PY - 2020/4/20
Y1 - 2020/4/20
N2 - Non steady applied magnetic field impact on a liquid metal has good prospects for industry. For a better understanding of heat and mass transfer processes under these circumstances, numerical simulations are needed. A combination of finite elements and volumes methods was used to calculate the flow and solidification of liquid metal under electromagnetic influence. Validation of numerical results was carried out by means of measuring with ultrasound Doppler velocimetry technique, as well as with neutron radiography snapshots of the position and shape of the solid/liquid interface. As a result of the first part of the work, a numerical model of electromagnetic stirring and solidification was developed and validated. This model could be an effective tool for analyzing the electromagnetic stirring during the solidification process. In the second part, the dependences of the velocity pulsation amplitude and the melt velocity maximum value on the magnetic field pulsation frequency are obtained. The ability of the pulsating force to develop higher values of the liquid metal velocity at a frequency close to the MHD resonance was found numerically. The obtained characteristics give a more detailed description of the electrically conductive liquid behaviour under action of pulsating traveling magnetic field.
AB - Non steady applied magnetic field impact on a liquid metal has good prospects for industry. For a better understanding of heat and mass transfer processes under these circumstances, numerical simulations are needed. A combination of finite elements and volumes methods was used to calculate the flow and solidification of liquid metal under electromagnetic influence. Validation of numerical results was carried out by means of measuring with ultrasound Doppler velocimetry technique, as well as with neutron radiography snapshots of the position and shape of the solid/liquid interface. As a result of the first part of the work, a numerical model of electromagnetic stirring and solidification was developed and validated. This model could be an effective tool for analyzing the electromagnetic stirring during the solidification process. In the second part, the dependences of the velocity pulsation amplitude and the melt velocity maximum value on the magnetic field pulsation frequency are obtained. The ability of the pulsating force to develop higher values of the liquid metal velocity at a frequency close to the MHD resonance was found numerically. The obtained characteristics give a more detailed description of the electrically conductive liquid behaviour under action of pulsating traveling magnetic field.
KW - Electromagnetic stirring
KW - Forced convection
KW - Gallium
KW - Liquid metal
KW - Numerical analysis
KW - Pulsed magnetic field
KW - Solidification
KW - Traveling magnetic field
UR - http://www.scopus.com/inward/record.url?scp=85083957110&partnerID=8YFLogxK
U2 - 10.3390/met10040532
DO - 10.3390/met10040532
M3 - Article
AN - SCOPUS:85083957110
VL - 10
JO - Metals
JF - Metals
SN - 2075-4701
IS - 4
M1 - 532
ER -