Berlin 2008 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 29: Poster II

DY 29.60: Poster

Donnerstag, 28. Februar 2008, 16:00–18:00, Poster C

Transport of ferrofluid due to traveling-stripe forcing — •Thomas Friedrich, Christian Gollwitzer, Reinhard Richter, and Ingo Rehberg — Experimentalphysik V, Universität Bayreuth, D-95440 Bayreuth

Transport of ferrofluid can be achieved by rotating [1] or by traveling magnetic fields [2,3]. We apply a traveling-stripe forcing of the magnetic induction [4] to a shallow layer of magnetic liquid. The volume transport in the subcritical and overcritical regime of the Rosensweig instability [5,6] is studied by means of radioscopy.

• [1] R. Krauss, M. Liu, B. Reimann, R. Richter, I. Rehberg, Appl. Phys. Lett. 86 024102-1 (2005)
• [2] H. Kikura, T. Sawada, T. Tanahashi, L.S. Seo, J. Magn. Magn. Mater. 85 167 (1990)
• [3] K. Zimmermann, I. Zeidis, V.A. Naletova, V.A. Turkov, J. Magn. Magn. Mater. 268 227 (2004)
• [4] A. Beetz, C. Gollwitzer, R. Richter, I. Rehberg, submitted (2007)
• [5] M. D. Cowley and R. E. Rosensweig, J. Fluid Mech. 30 671 (1967)
• [6] C. Gollwitzer, G. Matthies, R. Richter, I. Rehberg, L. Tobiska, J. Fluid Mech. 571 455 (2007)