Liquid Metal Flow Under Traveling Magnetic Field—Solidification Simulation and Pulsating Flow Analysis
| Autor: | E. Shvydkiy, Egbert Baake, Diana Köppen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Liquid metal Materials science numerical analysis 02 engineering and technology 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics TRAVELING MAGNETIC FIELD FORCED CONVECTION 0103 physical sciences General Materials Science lcsh:Mining engineering. Metallurgy LIQUID METAL forced convection gallium Numerical analysis Metals and Alloys Mechanics Velocimetry PULSED MAGNETIC FIELD 021001 nanoscience & nanotechnology ELECTROMAGNETIC STIRRING NUMERICAL ANALYSIS Finite element method Forced convection Magnetic field SOLIDIFICATION pulsed magnetic field Amplitude GALLIUM liquid metal Magnetohydrodynamics traveling magnetic field solidification 0210 nano-technology electromagnetic stirring |
| Zdroj: | Metals Volume 10 Issue 4 Metals, Vol 10, Iss 532, p 532 (2020) |
| ISSN: | 2075-4701 |
| DOI: | 10.3390/met10040532 |
| Popis: | 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. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
| Databáze: | OpenAIRE |
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