S
Steffen Landgraf
Researcher at Helmholtz-Zentrum Dresden-Rossendorf
Publications - 12
Citations - 184
Steffen Landgraf is an academic researcher from Helmholtz-Zentrum Dresden-Rossendorf. The author has contributed to research in topics: Liquid metal & Molten salt. The author has an hindex of 6, co-authored 9 publications receiving 102 citations.
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Journal ArticleDOI
Thermally driven convection in Li||Bi liquid metal batteries
Paolo Personnettaz,Paolo Personnettaz,Pascal Beckstein,Steffen Landgraf,Thomas Köllner,Thomas Köllner,Michael Nimtz,Norbert Weber,Tom Weier +8 more
TL;DR: In this paper, a simple 1D heat conduction model as well as a fully 3D thermo-fluid dynamics model were developed for Li||Bi LMBs. And the latter was implemented in the CFD library OpenFOAM, extending the volume of fluid solver, and validated against a pseudo-spectral code.
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Mass transport induced asymmetry in charge/discharge behavior of liquid metal batteries
TL;DR: In this article, the authors found that charging and discharging cycles may show pronounced asymmetries due to the presence (charge) or absence (discharge) of solutal convection.
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Liquid metal batteries - materials selection and fluid dynamics
Tom Weier,Andreas Bund,W. El-Mofid,Gerrit Maik Horstmann,C. C. Lalau,Steffen Landgraf,Michael Nimtz,M. Starace,Frank Stefani,Norbert Weber +9 more
TL;DR: In this article, the relative merits of using molten salts or ionic liquids as electrolytes for liquid metal cells and the choice of electrode materials are discussed, and an overview of investigations on magnetohydrodynamic instabilities in liquid metal batteries, namely the Tayler instability and electromagnetically excited gravity waves are presented.
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Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
Norbert Weber,Norbert Weber,Steffen Landgraf,Kashif Mushtaq,Kashif Mushtaq,Kashif Mushtaq,Michael Nimtz,Paolo Personnettaz,Tom Weier,Ji Zhao,Donald R. Sadoway +10 more
TL;DR: In this paper, a model for computing three-dimensional current and potential distributions, which accounts for internal voltage jumps, is presented, within the framework of the finite volume method, discretizing the Laplace and gradient operators such that they account for internal jump boundary conditions.
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The effect of a Lorentz-force-driven rotating flow on the detachment of gas bubbles from the electrode surface
TL;DR: In this paper, an alternative explanation for the observed bubble behavior is suggested: it might result from the comparatively strong global flow generated by the additive effect of a group of bubbles, and the experimental and numerical results obtained in this paper demonstrate that this pressure decrease is too weak as to effectively change the detachment process.