Fundamental and applied magnetohydrodynamics

Contribution List

2. Paņēmiens šķidra metāla brīvās virsmas elektromagnētiskai stabilizācijai

Arturs Brekis (Institute of Physics of the University of Latvia)

31/03/2023, 12:00

Oral presentation

Piedāvāta jauna metode šķidra metāla brīvās virsmas stabilizācijai elektromagnētiskā ceļā. Paņēmiens var tikt pielietots maiņstrāvas un maiņvirziena šķidruma plūsmas MHD ģeneratoru darbības uzlabošanai ar pielietojumiem tālās kosmosa misijās un citviet.

Izveidots demonstrācijas stends, kas sastāv no diviem pretēji novietotiem un pretfāzēs saslēgtiem skaļruņiem, kas imitē termoakustiskā...

4. Continuous Directional Solidification of Aluminium Alloys Under Combined Electromagnetic Interaction

Raimonds Nikoluškins (Institute of Physics of University of Latvia)

31/03/2023, 12:40

Oral presentation

Direct chill directional solidification is a method how to cast metal alloys with great control of solidification parameters like solidification velocity and temperature gradient at the solidification interface. This paper describes results and methods of our experiments with electromagnetic interaction (EM) in direct chill casting of silicon rich aluminium alloys like A356 and A360. Studies...

1. Force density in 2D centrifugal system using travelling magnetic field

Lorenzo Terlizzi (University of Latvia)

31/03/2023, 13:00

Oral presentation

Purification of liquid metal from small, unwanted solid particles that are the by-product of
industrial processes is a common problem in metallurgy. In practice purification is achieved using
various filtration methods such as sedimentation, mechanical filters, etc.

Another used method is centrifugation that uses the rotation of the fluid and inertial forces to
separate particles with a...

3. Heat density in a 2D centrifugal system using travelling magnetic field

Rūdolfs Strazdiņš (University of Latvia)

31/03/2023, 13:20

Oral presentation

In metallurgy, during the manufacturing process, liquid metals often have impurities such as solid oxide particles. Often, they can be removed from molten metals using mechanical filters (sieves). In praxis, due to the filter clogging and greater metal loss higher efficiency of this process is desired.

Another approach is to use centrifugal (inertial) force and the fact that liquid metals...

5. Modeļeksperiments termoelektromagnētisko efektu pētīšanai metināšanas punktā.

Valdemars Felcis (Institute of Physics of the University of Latvia)

31/03/2023, 13:40

Oral presentation

Metālu additīvā ražošana ir lētāka un vieglāka metode, ar kuru var straujāk prototipēt, salīdzinot ar parasti pielietoto liešanu. Analizējot ekstrūzijas vai lāzeru additīvo ražošanu ir svarīgi aplūkot metināšanas punktu, jo tas ietekmē objekta kvalitāti. Lai uzlabotu kvalitāti, apsver izmantot termoelektriskus materiālus ar magnētiem, kam ir empīrisku pētījumu rezultāti, bet ne par darbības...