4 PhD positions at MHD Department at HZDR (Dresden, Germany)

4 PhD positions

at MHD Department, Institute of Fluid Dynamics

of Helmholtz-Zentrum Dresden – Rossendorf (HZDR)

Bautzner Landstr. 400, 01328 Dresden, Germany

(https://www.hzdr.de)

 

HZDR invites applications for 4 PhD positions at the Department of Magnetohydrodynamics (MHD) of the Institute of Fluid Dynamics. For all positions we are looking for students with excellent skills and first experiences in the field of fluid mechanics. Prior knowledge of liquid metal MHD or CFD is welcome but not required. All positions will be available from 01.04.2016. The starting dates can be agreed upon individually.The employment contract is limited to three years. The weekly working time will be 75% of regular weekly working time according to the collective agreement TVöD. The salary is based on the collective agreement TVöD-Bund and will be in the range of 35000-40000 Euro per annum. The place of work is Dresden-Rossendorf.


PhD position #1 (Vacancy Notice No. 67E/2015)

Metal recovery from slags uses the top submerged lance technology (www.outotec.com) in which gas is injected into a slag melt via a submerged lance from above. In order to improve the energy and resource efficiency of the process, the announced position shall perform experimental modelling of this process. Extensive experiences exist at HZDR on the handling of the room-temperature model melt GaInSn. The work in frame of this position is a joint project of the Helmholtz Institute Freiberg (HIF) for Resource Technology with the Institute of Fluid Dynamics at HZDR which both belong to HZDR. The general goal is to bring together basic fluiddynamic methods with practically relevant resource technologies, and to transfer the results to industrial partners.

Requirements:

  • completed university education (master degree) in the fields engineering, physics or process engineering
  • knowledge in the field of fluid dynamics and measuring techniques for liquid metal flows
  • knowledge in the field of metallurgy is preferable

Tasks:

  • experimental modelling of the two-phase flow gas-slag using the room-temperature liquid metal GaInSn
  • measurement of the gas bubbles and the flow in the melt using available ultrasonic and X-ray measurement techniques
  • extension of the model experiments to include chemical reactions of the gas phase (oxygen added) with the metal melt and investigation of the mass transport of the resulting oxides. Alternatively injection of solid particles and measurement of their transport.

 


PhD position #2 (Vacancy Notice No. 68E/2015)

Fluid flow and the related heat and mass transfer occurring in the continuous casting of steel have a distinct influence on the efficiency of the process and the final product quality. Electromagnetic fields are already in use in the industry for the purpose of an efficient flow control. However, there is still a significant need of research for achieving a better understanding of the interaction between magnetic field and turbulent flow. Such knowledge is required for optimization of the process parameters. The PhD candidate shall conduct an experimental modeling of flow problems related to continuous casting of steel using low-melting point metal alloys. At HZDR there exist corresponding experimental facilities (LIMMCAST program) as well as suitable techniques for liquid metal flow measurements.

Requirements:

  • completed university education (master degree) in one of the following fields: fluid engineering, process engineering, foundry engineering or physics
  • knowledge in the field of fluid dynamics and measuring techniques for liquid metal flows
  • knowledge about metallurgical processes

Tasks:

  • experimental modeling of fluid flow and related transfer processes in the LIMMCAST facilities at HZDR using low-melting point metal alloys (GaInSn, SnBi)
  • application of ultrasonic techniques and inductive diagnostic methods for flow measurements
  • investigations of single and multiphase flows
  • investigations of the impact steady magnetic fields (electromagnetic brakes) and AC magnetic fields (electromagnetic stirrers) on the fluid flow

 

 


PhD position #3 (Vacancy Notice No. 69E/2015)

Metal recovery from slags uses the top submerged lance technology (www.outotec.com) in which gas is injected into a slag melt via a submerged lance from above. In order to improve the energy and resource efficiency of the process, the successful candidate for this position shall perform numerical simulations of this process. Extensive experiences exist at HZDR on the numerical simulation of complex two-phase flows. Experimental data and first numerical simulations of simplified water models are available from literature. The work in frame of this position is a joint project of the Helmholtz Institute Freiberg (HIF) for Resource Technology with the Institute of Fluid Dynamics at HZDR which both belong to HZDR. The general goal is to bring together basic fluiddynamic methods with practically relevant resource technologies, and to transfer the results to industrial partners.

Requirements:

  • completed university education (master degree) in one of the following fields: fluid engineering, process engineering, foundry engineering or physics
  • knowledge in the field of fluid dynamics and numerical simulation
  • knowledge about metallurgical processes

Tasks:

  • numerical simulation of a simplified water-air model using the Euler-Euler approach
  • simulations for liquid metal model experiments which are performed in parallel by another PhD student
  • transfer of the simulations to real slag melts in order to analyse dependencies on process parameters (geometry, submergence length, flow rates, etc.)
  • extension to include chemical reactions of the gas phase with the slag melt and/or the transport of solid particles in the melt

 


PhD position #4 (Vacancy Notice No. 70E/2015)

Metallic melts in industrial processes usually contain fine-dispersed particles (for instance oxides), which could have a detrimental effect on the mechanical properties of the final product. Such particles can be extracted by flotation. For that purpose gas bubbles will be injected into the melt in order to collect the impurities at the gas-liquid interface. The current project will investigate fundamental mechanisms which play an important role for the agglomeration of particles at the bubble surface. Another topic concerns the behaviour of particles in the vicinity of a propagating solidification front. The PhD candidate shall investigate the processes mentioned above by means of X-ray diagnostic techniques. The corresponding facilities and measuring techniques are available at HZDR.

Requirements:

  • completed university education (master degree) in the fields materials science, physics or process engineering
  • knowledge in the field of X-ray diagnostics and image processing, multiphase flows, solidification processes

Tasks:

  • experimental investigation of the behaviour of gas bubbles passing a particle-laden liquid metal
  • experimental investigation of the behaviour of particles at propagating solidification fronts
  • Application of X-ray radioscopy for process visualization
  • Application and further development of suitable algorithms for data analysis and subroutines for image processing
  • Investigation of the influence of electromagnetically driven flows on the particle behaviour

 

For further information on all positions, please contact Dr. Sven Eckert, Tel.: +49 351 260 – 2132 (s.eckert@hzdr.de) or Dr. Gunter Gerbeth, Tel.: +49 351 260 – 3480 (g.gerbeth@hzdr.de).

 

In any case, please submit your complete application (cover letter, CV, certificates,…) by January 31, 2016 via Online application https://www.hzdr.de/jobs using the above given Vacancy Notice Numbers.

PDF version:  Positions_at_HZDR_PDF

 

Special Issue #3, 2015

——————————

16th MHD-Days

TU Ilmenau, December 7-9, 2015

September 2015 update of announcement:

——————————————————————————————————-

Abstract submission and registration for the conference have started. Please register through the conference web pages 

http://www.tu-ilmenau.de/mhddays2015

The registration deadline is November 20. The conference fee is 85 Euros including conference dinner.

Confirmed speakers at the event are

  • Jonathan Aurnou, UCLA, USA
  • Peter Davidson, University of Cambridge, UK
  • Peter Frick, Perm State University, Russia
  • Gunter Gerbeth, Helmholtz Center Dresden-Rossendorf, Germany
  • Koulis Pericleous, University of Greenwich, UK

We hope that the community will be interested in the conference, and we look forward to welcoming many participants.

Dr. Thomas Boeck

Dr. Dmitry Krasnov

Prof. Christian Karcher

Prof. Jörg Schumacher

(Organizing committee)

 

Schedule of Conferences on MHD and Related Topics

Next Hydromag Newsletter

will be issued in the middle of October, 2014. Please send information you wish to be included into this issue to

a.pedcenko(at)coventry.ac.uk

not later than 12 of October, 2015.

If you have an urgent announcement, we can publish at http://hydromag.eu between the issues.

 

—–

Alex Pedcenko

Coventry University

Priory Street Coventry CV1 5FB

United Kingdom

Tel: +44-24-6577-8974

e-mail: a.pedcenko(at)coventry.ac.uk

04-09-2016: 16th International Conference on Liquid and Amorphous Metals (LAM-16)

The 16th International Conference on Liquid and Amorphous Metals (LAM-16) will be held at the town hall of Bonn – Bad Godesberg, Germany, from September 04-09, 2016.

The conference aims to provide a forum for scientists interested in liquid and amorphous metals in order to discuss recent advances and future directions in this intriguing field of condensed matter physics, chemistry and materials sciences. Apart from papers on metallic systems, the LAM conferences traditionally also welcome contributions on liquid and amorphous semi-conductors as well as on molten salts.

The series of LAM conferences has a long standing history dating back to the liquids metal conference LM-1 in Brookhaven (1966). It was followed by the liquid metals conferences in Tokyo (1972) and Bristol (1976). The scope of the conference series was complemented by topics of amorphous metals in the following LAM conferences held in Grenoble (1980), Los Angeles (1983), Garmisch-Partenkirchen (1986), Kyoto (1989), Wien (1992), Chicago (1995), Dortmund (1998), Yokohama (2001), Metz (2004), Ekaterinburg (2007), Rome (2010) and Beijing (2013).

We are planning plenary sessions on hot topics and future advances in the field and there will be thematically focused sessions with invited and selected contributed talks as well as a poster session.

The following topics will be covered by the conference:

  • structural and dynamical properties of liquid and amorphous phases
  • bulk amorphous glasses (development and properties)
  • liquids under extreme and/or highly metastable conditions
  • thermophysical properties of metallic melts and amorphous matter
  • experimental techniques for investigating liquid and amorphous
    matter (including state of the art in-situ techniques for studying non-equilibrium states, phase transitions or chemical reactions in liquid and amorphous matter)
  • simulation techniques for studying structure, dynamics and properties of liquid and amorphous systems
  • investigations on liquid metals under the unique conditions of reduced gravity
  • applications of amorphous materials.

Conference website: https://dlr-mp.meetingmasters.de/LAM16

Abstract submission deadline: March 31, 2016

The next EPM conference reminder

The next EPM conference will be held from Monday 12 October at 16:00 to Friday 16 October 2015 at the Majestic Barriere Hotel  Cannes – France   see website : epm2015.sciencesconf.org
——-

Jacqueline Etay

16th MHD-Days [update]

July 2015 update of announcement:

16th MHD-Days

TU Ilmenau, December 7-9, 2015

——————————————————————————————————-

The topics of the MHD Days include both geo- and astrophysical MHD as well as industrial applications of MHD. The conference webpage is

www.tu-ilmenau.de/mhddays2015

The MHD days will also be used to give an overview of the ongoing activities in the Research Training Group on flow measurement in liquid metals and electrolytes using contactless Lorentz force velocimetry and on non-destructive material inspection using Lorentz force eddy current testing. This Research Training Group at TU Ilmenau is supported by the Deutsche Forschungsgemeinschaft.

Confirmed speakers at the event are

  • Jonathan Aurnou, UCLA, USA
  • Peter Davidson, University of Cambridge, UK
  • Peter Frick, Perm State University, Russia
  • Gunter Gerbeth, Helmholtz Center Dresden-Rossendorf, Germany
  • Koulis Pericleous, University of Greenwich, UK

The conference fee will be 85 Euros including conference dinner. Registration and abstract submission will be active from September. We hope that the community will be interested in the conference, and we look forward to welcoming many participants.

—————————-

(Organizing committee)

Dr. Thomas Boeck

Dr. Dmitry Krasnov

Prof. Christian Karcher

Prof. Jörg Schumacher