Contact

Dr. Sven Eckert
Head Magnetohydrodynamics
s.eckertAthzdr.de
Phone: +49 351 260 2132, +49 351 260 3563
Fax: +49 351 260 12132, +49 351 260 2007

Magnetohydrodynamik - Forschungsthemen

Foto: Scheme and computed magnetic eigenfield of the Riga dynamo ©Copyright: Dr. Frank Stefani

The Riga Dynamo Experiment

Magnetic fields of planets, stars, and galaxies are produced by self-excitation in moving electrically conducting fluids. In 1999, the underlying hydromagnetic dynamo effect was experimentally evidenced at the Riga dynamo facility. With numerical simulations, the development of measurement techniques, and extensive data analyses our department has contributed significantly to the success of this unique experiment.
More
Foto: Lithium liquid metal electrode ©Copyright: ©Steffen Landgraf, Michael Nimtz

Energy Storage and Energy Con­version with Liquid Metals

Liquid metals offer a range of benefits when used for energy storage and energy con­version: cost-effective production, high cycle numbers and high scalability
More
Foto: LIMMCAST-plant ©Copyright: Dr. Klaus Timmel

Continuous Casting Liquid Metal Model

The LIMMCAST facility is used to investigate the process of continuous casting of metals and to improve it by applying properly designed electromagnetic fields.
More
Foto: Magneto-hydrodynamics: Steel Casting Using Magnetic Fields (Picture: AIFilm) ©Copyright: AI Films

Measurement techniques for liquid metals

The knowledge of velocity structures or of the gas distribution in liquid metals is of great interest in laboratory experiments as well as in industrial applications. The opaqueness of those fluids prevents the use of well established optical methods. Additionally, the corrosiveness and the high temperatures are challenges for measurement techniques.
More
Foto: X Ray Setup ©Copyright: Dr. Natalia Shevchenko

X-ray visualisation of solidification and two-phase phenomena

X-ray absorption contrast techniques are an important diagnostic tool to investigate solidification processes or liquid metal two-phase flows in metallic alloys. X-ray visualisation enables a general, intuitive understanding of flow phenomena or pattern formation in opaque liquid metals.
More
Foto: Crystal growth - Model experiment ©Copyright: Dr. Josef Pal

Crystal growth melt flow control using magnetic fields

The physical modeling of crystal growth processes provides a tangible insight into key process flows. The numerical simulation of heat and mass transfer has great potential for optimizing the basic processes involved, especially the control of the flow by means of magnetic fields. By combining both approaches one may add up advantages and eliminate shortcomings.
More
Foto: Tayler instability ©Copyright: Dr. Norbert Weber

The Tayler Instability

The Tayler instability limits the up-scalability of liquid metal batteries and plays a major role in astrophysics.
More
Foto: Magnetfelder im Kosmos ©Copyright: Sander Münster

Magnetorotational instability (PROMISE Experiment)

Cosmic magnetic fields play a surprisingly active role in cosmic structure formation by fostering outward angular momentum transport and inward mass accretion onto central objects, like protostars or black holes, by means of the magnetorotational instability (MRI). At the PROMISE experiment, two special ­versions of MRI, the helical MRI and the azimuthal MRI are investigated.
More
Foto: Bubble in the fields ©Copyright: Dr. Tom Weier

Magnetoelectrochemistry

Magnetic control of mass transfer and convection in electrochemical processes
More
Foto: Liquid metal multiphase flows ©Copyright: Dr. Sven Eckert

Liquid metal multiphase flows

Liquid metal two-phase flows are of particular importance for many processes in metallurgy and metal casting. For example, the secondary-metallurgical treatment of liquid steel relies on the injection of purge gas for improving the steel cleanliness. Objectives are the enhancement of mixing and homogenization and the se­paration of inclusions by flotation.
More
Foto: Magneto-hydrodynamics: Steel Casting Using Magnetic Fields (Picture: AIFilm) ©Copyright: AI Films

Young Investigators Group on Measurement Techniques for Liquid Metal Flows

More

Weitere Forschungsthemen


Contact

Dr. Sven Eckert
Head Magnetohydrodynamics
s.eckertAthzdr.de
Phone: +49 351 260 2132, +49 351 260 3563
Fax: +49 351 260 12132, +49 351 260 2007