BEGIN:VCALENDAR VERSION:2.0 PRODID:-//DTU.dk//NONSGML DTU.dk//EN CALSCALE:GREGORIAN BEGIN:VEVENT DTSTART:20260616T110000Z DTEND:20260616T114500Z SUMMARY:From Magnetic Pumps and Gears to Halbach Spheres: Applying permanent magnets DESCRIPTION:

A DCAMM seminar will be presented by

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Professor Ingo Rehberg
\nUniversity of Bayreuth, Germany\n
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Abstract:
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\nUsing magnetic spheres [1] together with an open-source graphical user interface [2], this talk illustrates basic features of magnetic interaction leading to three applications based on magnetic particles:\n

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  1. Two dipoles realize two different cogging-free magnetic gears [3].
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  2. No moving parts are needed to pump magnetic fluids [4].
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  3. Icosahedral ordering of magnets is best for achieving homogenous fields [5].
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    4. \n
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[1] S. Hartung et al., Physical Review B 98, 214424 (2018).
\n[2] I. Rehberg & P. Blümler. Halbach_two_point_oh: Optimize Uniform Fields with Clusters and Rings of   Permanent Magnets. Zenodo  https://doi.org/10.5281/zenodo.17185412 (2025).
\n[3] S. Hartung, I. Rehberg, Arch Appl Mech 91, 1423 (2021).
\n[4] R. Krauß et al.,   Pumping fluid by magnetic surface stress, New Journal of Physics 8, 18 (2006)
\n[5] I. Rehberg and Peter Blümler, Discretized Halbach spheres: Icosahedral symmetry for optimal field homogeneity, Phys. Rev. Appl. (2026).

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Cake, coffee and tea will be served 15 minutes before the seminar starts.
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\nAll interested persons are invited

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X-ALT-DESC;FMTTYPE=text/html:

A DCAMM seminar will be presented by

\n

\n

\n

\n

\n

\n

\n\n

\n

\n\n

Professor Ingo Rehberg
\nUniversity of Bayreuth, Germany\n
\n

\n


\n

\n\n

Abstract:
\n
\nUsing magnetic spheres [1] together with an open-source graphical user interface [2], this talk illustrates basic features of magnetic interaction leading to three applications based on magnetic particles:\n

\n
    \n
  1. Two dipoles realize two different cogging-free magnetic gears [3].
    2. \n
  2. No moving parts are needed to pump magnetic fluids [4].
    3. \n
  3. Icosahedral ordering of magnets is best for achieving homogenous fields [5].
    \n
    \n
    4. \n
\n

[1] S. Hartung et al., Physical Review B 98, 214424 (2018).
\n[2] I. Rehberg & P. Blümler. Halbach_two_point_oh: Optimize Uniform Fields with Clusters and Rings of   Permanent Magnets. Zenodo  https://doi.org/10.5281/zenodo.17185412 (2025).
\n[3] S. Hartung, I. Rehberg, Arch Appl Mech 91, 1423 (2021).
\n[4] R. Krauß et al.,   Pumping fluid by magnetic surface stress, New Journal of Physics 8, 18 (2006)
\n[5] I. Rehberg and Peter Blümler, Discretized Halbach spheres: Icosahedral symmetry for optimal field homogeneity, Phys. Rev. Appl. (2026).

\n

Cake, coffee and tea will be served 15 minutes before the seminar starts.
\n
\nAll interested persons are invited

\n\n

 

\n\n

 

\n

 

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URL:http://www.dcamm.dk/da/Kalender/2026/06/Seminar_No_805 DTSTAMP:20260604T100200Z UID:{7411379B-C76D-4322-8CE8-8C7B300F7CF1}-20260616T110000Z-20260616T110000Z LOCATION: Building 5510, room 104, Aarhus University, Åbogade 15, 8200  Aarhus N END:VEVENT END:VCALENDAR