Assessment of Electromagnetic Stirrer Agitated Liquid Metal Flows by Dynamic Neutron Radiography
| Autor: | Peter Vontobel, Knud Thomsen, Andris Jakovics, Toms Beinerts, M. Sarma, Mihails Ščepanskis, Pavel Trtik |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Liquid metal
Materials science Opacity Neutron imaging Metals and Alloys Analytical chemistry Dynamic Neutron Radiography 02 engineering and technology Mechanics Condensed Matter Physics 01 natural sciences Homogenization (chemistry) Liquid Metal Flows 010305 fluids & plasmas 020501 mining & metallurgy Physics::Fluid Dynamics 0205 materials engineering Particle image velocimetry Mechanics of Materials TRACER Magnet 0103 physical sciences Materials Chemistry Neutron |
| Zdroj: | Metallurgical and Materials Transactions B 48(2017)2, 1045-1054 |
| Popis: | This paper presents qualitative and quantitative characterization of two-phase liquid metal flows agitated by the stirrer on rotating permanent magnets. The stirrer was designed to fulfill various eddy flows, which may have different rates of solid particle entrapment from the liquid surface and their homogenization. The flow was characterized by visualization of the tailored tracer particles by means of dynamic neutron radiography, an experimental method well suited for liquid metal flows due to low opacity of some metals for neutrons. The rather high temporal resolution of the image acquisition (32 Hz image acquisition rate) allows for the quantitative investigation of the flows up to 30 cm/s using neutron particle image velocimetry. In situ visualization of the two-phase liquid metal flow is also demonstrated. |
| Databáze: | OpenAIRE |
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