Workshop MHD-Days 2015

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1 Agenda Monday, 07 December 2015 Session 1 13:00 13:10 Thomas Boeck: Welcoming words 13:10 13:30 Jörg Schumacher: Introduction and RTG overview 13:30 13:45 Konstantin Weise: Recent Developments in Lorentz Force Eddy Current Testing 13:45 14:00 Nataliia Dubovikova: Lorentz Force Velocimetry and Investigation of Liquid Metal Flows 14:00 14:15 Reschad Ebert: Lorentz Force Velocimetry applied to Weakly Conducting Fluids 14:15 14:45 Coffee break Session 2 14:45 15:30 Laboratory-Numerical Models of Planetary Core Dynamics Jonathan Aurnou, UCLA (USA), Invited Plenary Speaker 15:30 15:45 Thomas Gastine: Rayleigh-Bénard convection in spherical shells 15:45 16:00 Lucia Duarte: Helicity inversion in spherical convection as a means for equatorward dynamo wave propagation 16:00 16:15 Radostin Simitev: Dynamo effects near the transition from solar to anti-solar differential rotation 16:15 16:30 Short break Session 3 16:30 16:45 Anna Guseva: Linear scalings and transport properties of the azimuthal magnetorotational instability 16:45 17:00 Marcus Gellert: Chandrasekhar-type MHD instabilities in Taylor-Couette flows 17:00 17:15 Alejandro Paredes: Mixing of a passive scalar by the instability of a differentially rotating axial pinch 17:15 17:30 Chiara Mistrangelo: MHD velocity jets driven by injected current 17:30 19:00 Poster session with beer and pretzels 19:00 Close of day 1

2 Poster Session, 17:30 19:00 Monday, 07 December 2015 RTG Projects Project A-1 Igor Sokolov: High magnetic Reynolds numbers: Experiments Project A-2 Jan Schleichert: Traceable multi-component force and torque measurement Project A-3 Vinodh Bandaru: Magnetohydrodynamic channel and duct flows at finite magnetic Reynolds numbers Project A-5 Shatha Alkhalil: Lorentz force sigmometry: A novel technique to measure the electrical conductivity of molten metals Project B-2 Suren Vasilyan: High-resolution force measurement of low conductive media Project B-3 Markus Weidner: Magnetic field distribution between two YBCO bulks Project B-4 Dzulia Terzijska: Optimization of Magnetic Field Sources in Lorentz Force Velocimetry Project C-1 Matthias Carlstedt: Lorentz Force Eddy Current Testing: Experiment Project C-3 Judith Mengelkamp: Inverse Calculations for Lorentz Force Evaluation Associated RTG Projects 1 Ahmad Warda: Sensor placement optimization: information content approach 2 Xiujie Xu: Detection of interface position and instabilities between two electrically conducting fluids using Lorentz Force Velocimetry 3 Xueyuan Leng: The effect of axial magnetic field on turbulent Taylor-Couette flow 4 Bojana Petkovic: New forward solution in Lorentz force eddy current testing 5 Daniel Hernández: Local LFV using small-size permanent magnet systems and a multicomponent force/torque sensor 6 Wenjun Liu: DNS of natural convection in liquid metal with strong magnetic fields in rectangular geometry Other Posters 1 Thomas Arlt: Numerical Investigations of MHD-Duct Flows 2 Oliver Göpfert: Numerical simulation of the dynamo effect in a precessing cube 3 Christoph Kasprzyk: A Spherical Couette Experiment to Observe Magnetohydrodynamic Instabilities

3 Agenda Tuesday, 08 December 2015 Session 4 08:30 09:15 Cascades in fully developed MHD-turbulence Peter Frick, Perm State University (Russia), Invited Plenary Speaker 09:15 10:00 What keeps the magnetic field of the earth alive? Peter Davidson, University of Cambridge (UK), Invited Plenary Speaker 10:00 10:30 Coffee break Session 5 10:30 10:45 Johannes Wicht: Quenching in spherical shell dynamo simulations and the connection to field reversals 10:45 11:00 Kumiko Hori: Slow magnetic Rossby waves in the Earth's core 11:00 11:15 Alexandra Marsenic: Numerical solution of a kinematic problem for geomagnetic vertical variation 11:15 12:30 Lunch at the university cafeteria Session 6 12:30 12:45 Rainer Arlt: Thermo-magnetic instability in spherical geometry 12:45 13:00 Wietze Herreman: Minimal flow perturbations that trigger dynamos in shear flows 13:00 13:15 Dimitar Vlaykov: Finite resolution effects in simulations of compressible magnetohydrodynamic turbulence 13:15 13:30 Philipp Grete: Subgrid-scale modeling of compressible MHD turbulence 13:30 13:45 Prabal Singh Verma: Higher Order Finite Volume Scheme For Multidimensional MHD Problems 13:45 14:00 Group photo (perhaps outside, depending on the weather) 14:00 14:30 Coffee break Session 7 14:30 15:15 Magnetic stirring and sonication of liquid metals Gunter Gerbeth, HZDR (Germany), Invited Plenary Speaker 15:15 15:30 André Giesecke: Numerical simulations for the planned precession dynamo experiment at HZDR 15:30 15:45 Ankit Barik: Spherical Couette Dynamos 15:45 16:00 Short break Session 8 16:00 16:15 Michael Mond: Transient Growth Control in Hartmann Flow 16:15 16:30 Leo Bühler: Three-dimensional MHD effects due to discontinuous insulation in pipes and channels 16:30 16:45 Lee Braiden: Transition to turbulence in Hunt s flow in moderate magnetic fields 16:45 17:00 Dmitry Krasnov: MHD channel flow under streamwise magnetic field 17:00 19:00 Free time 19:00 Conference Dinner, Hotel Tanne Ilmenau

4 Agenda Wednesday, 09 December 2015 Session 9 09:15 10:00 Crystals, Soundfields and Magnets Koulis Pericleous, University of Greenwich (UK), Invited Plenary Speaker 10:00 10:15 Thomas Gundrum: Contactless inductive bubble detection in a liquid metal column 10:15 10:30 Oleg Andreev: Gas bubble detection in liquid metal flow by the method of differential electromagnetic induction (EMI) 10:30 11:00 Coffee break Session 10 11:00 11:15 Erik Strumpf: Investigation of single bubbles and bubble chains in liquid metal under the influence of magnetic fields 11:15 11:30 Jose Oskar Torres Perez: A Numerical Approach to High-performance Forehearth Coloring using Lorentz Forces based on a verified Simulation Model 11:30 11:45 Saskia Tympel: Single particle measurements of material line stretching in turbulence 11:45 12:00 open time slot: Presentation title tba (to be announced) 12:00 End of Event For those who are interested: We will be happy to offer various laboratory tours after lunch on this day, please sign up for your preferred tour on Monday when you arrive.

5 Workshop Venue Workshop Venue: EAZ Cafeteria

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