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Lorentz force particle analyzer
- Source :
- Journal of Applied Physics, Journal of Applied Physics, American Institute of Physics, 2016, 120 (1), ⟨10.1063/1.4956842⟩
- Publication Year :
- 2016
-
Abstract
- International audience; A new contactless technique is presented for the detection of micron-sized insulating particles in the flow of an electrically conducting fluid. A transverse magnetic field brakes this flow and tends to become entrained in the flow direction by a Lorentz force, whose reaction force on the magnetic-field-generating system can be measured. The presence of insulating particles suspended in the fluid produce changes in this Lorentz force, generating pulses in it; these pulses enable the particles to be counted and sized. A two-dimensional numerical model that employs a moving mesh method demonstrates the measurement principle when such a particle is present. Two prototypes and a three-dimensional numerical model are used to demonstrate the feasibility of a Lorentz force particle analyzer (LFPA). The findings of this study conclude that such an LFPA, which offers contactless and on-line quantitative measurements, can be applied to an extensive range of applications. These applications include measurements of the cleanliness of high-temperature and aggressive molten metal, such as aluminum and steel alloys, and the clean manufacturing of semiconductors. Published by AIP Publishing.
- Subjects :
- General Physics and Astronomy
02 engineering and technology
01 natural sciences
Flow measurement
020501 mining & metallurgy
Physics::Fluid Dynamics
symbols.namesake
0103 physical sciences
Coulter Principle
Stratified flow
010306 general physics
Prototype B: "Dry" prototype compared with a 3d numerical model
Physics
Range (particle radiation)
Mechanics
[CHIM.MATE]Chemical Sciences/Material chemistry
Prototype A: Thin flow of GalnSn with water drops
Institut für Technische Thermodynamik
Classical mechanics
0205 materials engineering
Reaction
symbols
Particle
a two-dimensional numerical model
application of LiMCA
Two-phase flow
Magnetohydrodynamics
Lorentz force
a contactless electromagnetic diagnostic method
Subjects
Details
- Language :
- German
- ISSN :
- 00218979 and 10897550
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Physics, Journal of Applied Physics, American Institute of Physics, 2016, 120 (1), ⟨10.1063/1.4956842⟩
- Accession number :
- edsair.doi.dedup.....6fb0a610bd775567df29f8d764cae27a