Dr. Janis Priede

Dr Janis Priede’s (JP) research concerns theoretical and numerical analysis of liquid-metal magnetohydrodynamics (MHD) and the associated electromagnetic and hydrodynamic stability problems. JP obtained his PhD in 1993 from the Institute of Physics (Latvia), where he studied the flows of conducting liquids driven by rotating magnetic field. Next five years he spent at the Research Centre Dresden-Rossendorf (FZD), Germany, working as a research fellow together with Dr. Gunter Gerbeth on the stability of Marangoni convection and electromagnetic levitation melting. In 1998 JP returned to the Institute of Physics, University of Latvia, where he worked as a senior researcher until 2006.

During this period he continued to collaborate with the FZD and developed a theory of electrodynamic instabilities describing the origin of rotations and oscillations of electromagnetically levitated bodies at sufficiently high AC frequencies of magnetic field. In 2006 JP moved to Coventry University, where he took up the post of Reader in Applied mathematics. His current research interests include the magnetorotational instability, which is sought to be responsible for the faster-than-expected formation of stars and whole galaxies in the accretion discs, development of contactless electromagnetic flow meters, and stability analysis of flows of liquid metals in strong magnetic fields.

• Priede, J. (2011) 'Edge pinch instability of oblate liquid metal drops in a transverse AC magnetic field'. Journal of Fluid Mechanics 676, 218-236. 
• Priede, J. (2011) 'Inviscid helical magnetorotational instability in cylindrical Taylor-Couette flow'. Physical Review E: Statistical, Non-linear and Soft Matter Physics 84, 066314-10. 
• Priede, J. (2011) 'Oscillations of weakly viscous conducting liquid drops in a strong magnetic field'. Journal of Fluid Mechanics 671, 399-416. 
• Priede, J., Buchenau, D., and Gerbeth, G. (2011) 'Single-magnet rotary flowmeter for liquid metals'. Journal of Applied Physics 110 (3), 034512. 
• Priede, J., Avalos-Zuniga, R., and Plunian, F. (2010) 'Homopolar oscillating-disc dynamo driven by parametric resonance'. Physics Letters A: General, Atomic and Solid State Physics374 (4), 584-587. 
• Priede, J., Aleksandrova, S., and Molokov, S. (2010) 'Linear stability of Hunt’s flow'. Journal of Fluid Mechanics 649, 115-134. 
• Priede, J., and Gerbeth, G. (2009) 'Absolute versus convective helical magnetorotational instability in a Taylor-Couette flow'. Physical Review E: Statistical, Non-linear and Soft Matter Physics 79 (4), 046310-046315. 
• Priede, J., Grants, I., and Gerbeth, G. (2007) 'Inductionless magnetorotational instability in a Taylor-Couette flow with a helical magnetic field'. Physical Review E: Statistical, Non-linear and Soft Matter Physics 75, 047303-1-047303-4. 
• Priede, J., and Gerbeth, G. (2000) 'Hydrothermal wave instability of thermocapillary-driven convection in a transverse magnetic field'. Journal of Fluid Mechanics 404, 211-250. 
• Priede, J., and Gerbeth, G. (1997) 'Convective, absolute, and global instabilities of thermocapillary-buoyancy convection in extended layers'. Physical Review E: Statistical, Non-linear and Soft Matter Physics 56 (4), 4187-4199. 

• Helmholtz Alliance LIMTECH (Liquid Metal Technologies): Development of liquid metal batteries in partnership with  the Helmholtz Research Centre Dresden-Rossendorf (HZDR) in Germany. 

• Electro-Magnetic Levitation Evaporation for PVD Coatings: Development of  new coating techniques of steel strips using physical vapour deposition from an electromagnetically levitated metal droplet for Corus Technology BV in The Netherlands. 

• Electromagnetic flow control in metallurgy, crystal growth and electrochemistry: Development of a two-phase radio-frequency induction heater for the floating-zone growth of single inter-metallic compound crystals at the Leibniz Institute for Solid State and Materials Research in Dresden, Germany. 

• Liquid metal flowmeters: Development of phase-shift and single-magnet rotary flowmeters for liquid metals (in collaboration with the HZDR in Germany).