Difference between revisions of "Rudolf Weeber"

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|name=Weeber, Rudolf
 
|name=Weeber, Rudolf
 
|status=Postdoc
 
|status=Postdoc
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|phone=67717
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|phone=67609
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|room=1.092
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|room=1.036
 
|email=Rudolf.Weeber
 
|email=Rudolf.Weeber
 
|image=Rudolf01.jpg
 
|image=Rudolf01.jpg
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|topical=gel
 
|topical=gel
 
|topical2=espresso
 
|topical2=espresso
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|topical3=hydrodynamics
 
}}
 
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Currently, my work is focussed on magnetic gels and elastomers. They are soft elastic materials, into which magnetic particles are embedded. Through the interplay of the elasticity of the matrix and the magnetic properties of the particles, the sample's shape and elasticity can be controlled by means of external magnetic fields.
 +
Predicting this behaviour accurately is, however, rather difficult, as, typically several effects are at work at the same time. We approach the topic using computer simulations, as they allow for precise control of individual aspects of the models, and we can study the relevant mechanisms separate from each other.
 +
 +
I am also involved in work on nanoparticles in a flow and micro-rheology,
 +
in particular, the irreversible agglomeration of soot particles in turbulent flow as well as the study of local jamming effects in optical tweezer experiments.
 +
 +
I am interested in the development of simulation software and am a contributor to the ESPResSo molecular dynamics package.
 +
  
 
==Publications==
 
==Publications==
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<bibentry pdflink=yes>
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<bibentry pdflink=no>
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weeber15b
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kreissl21a,
−
huang15a
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weeber19b,
−
pessot15a
+
weeber19a,
−
weeber15a
+
smiljanic19a,
−
weeber14a
+
weik19a,
−
inci14a
+
weeber18a,
−
weeber13a
+
inci17a,
 +
huang16a,
 +
weeber15c,
 +
pessot15a,
 +
weeber15a,
 +
weeber14a,
 +
inci14a,
 +
weeber13a,
 
klinkigt13a,
 
klinkigt13a,
 
weeber12b,
 
weeber12b,
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kantorovich11b,
 
kantorovich11b,
 
kantorovich11a,
 
kantorovich11a,
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krewitt11a,
 
gutsche11a,
 
gutsche11a,
 
gutsche08a,
 
gutsche08a,
−
weeber08a,
+
weeber08a
 
</bibentry>
 
</bibentry>
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==CV==
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* 2000: Abitur with majors in politics and physics
 +
 +
* 2000 - 2008: Studies of physics at the University of Stuttgart
 +
:Specializations: Simulation methods, electronic structure of condensed matter
 +
:Diplomarbeit: "Dynamical simulation of colloids and their interactions" concerning local jamming effects in optical tweezer experiments.
 +
:Advisor: J. Harting
 +
 +
* 2008: Research assistant at the Insitute for Computational Physics, University of Stuttgart
 +
:Work on fluid-particle coupling schemes in SRD/MD simulations
 +
 +
* 2008: Intern at the German Aerospace Center in the Department of Systems Analysis and Technology Assessment
 +
:Agent-based simulations on the market integration of renewable energies
 +
 +
* 2008 - 2009: Researcher in the same group
 +
 +
* 2009 - 2015: Doctoral researcher at the Institute for Computational Physics and in the graduate school of the Stuttgart Research Center for Simulation Technology, University of Stuttgart
 +
:Thesis: "Simulation of novel soft magnetic materials"
 +
:Advisor: C. Holm
 +
* since 2015: Postdoc in the same group
 +
:Work on magnetic gels and elastomers

Latest revision as of 15:13, 6 January 2021

Rudolf01.jpg
Rudolf Weeber
Postdoc
Office:1.036
Phone:+49 711 685-67609
Fax:+49 711 685-63658
Email:Rudolf.Weeber _at_ icp.uni-stuttgart.de
Address:Rudolf Weeber
Institute for Computational Physics
Universität Stuttgart
Allmandring 3
70569 Stuttgart
Germany

Currently, my work is focussed on magnetic gels and elastomers. They are soft elastic materials, into which magnetic particles are embedded. Through the interplay of the elasticity of the matrix and the magnetic properties of the particles, the sample's shape and elasticity can be controlled by means of external magnetic fields. Predicting this behaviour accurately is, however, rather difficult, as, typically several effects are at work at the same time. We approach the topic using computer simulations, as they allow for precise control of individual aspects of the models, and we can study the relevant mechanisms separate from each other.

I am also involved in work on nanoparticles in a flow and micro-rheology, in particular, the irreversible agglomeration of soot particles in turbulent flow as well as the study of local jamming effects in optical tweezer experiments.

I am interested in the development of simulation software and am a contributor to the ESPResSo molecular dynamics package.


Publications

    • Kreissl, Patrick and Holm, Christian and Weeber, Rudolf.
      "Frequency-dependent magnetic susceptibility of magnetic nanoparticles in a polymer solution: a simulation study".
      Soft Matter 17(174–183), 2021.
      [PDF] (3 MB) [DOI] [URL]
    • Weeber, Rudolf and Nestler, Franziska and Weik, Florian and Pippig, Michael and Potts, Daniel and Holm, Christian.
      "Accelerating the calculation of dipolar interactions in particle based simulations with open boundary conditions by means of the P2NFFT method".
      Journal of Computational Physics 391, 2019.
      [PDF] (12 MB) [DOI]
    • Weeber, Rudolf and Kreissl, Patrick and Holm, Christian.
      "Studying the field-controlled change of shape and elasticity of magnetic gels using particle-based simulations".
      Archive of Applied Mechanics 89(1)(3–16), 2019.
      [PDF] (3 MB) [DOI] [URL]
    • Smiljanic, Milena and Weeber, Rudolf and Pflüger, Dirk and Holm, Christian and Kronenburg, Andreas.
      "Developing coarse-grained models for agglomerate growth".
      The European Physical Journal Special Topics 227(14)(1515–1527), 2019.
      [PDF] (894 KB) [DOI]
    • Weik, Florian and Weeber, Rudolf and Szuttor, Kai and Breitsprecher, Konrad and de Graaf, Joost and Kuron, Michael and Landsgesell, Jonas and Menke, Henri and Sean, David and Holm, Christian.
      "ESPResSo 4.0 – an extensible software package for simulating soft matter systems".
      The European Physical Journal Special Topics 227(14)(1789–1816), 2019.
      [PDF] (2 MB) [DOI] [URL]
    • Weeber, Rudolf and Hermes, Melissa and Schmidt, Annette M. and Holm, Christian.
      "Polymer architecture of magnetic gels: a review".
      Journal of Physics: Condensed Matter 30(6)(063002), 2018.
      [PDF] (4 MB) [DOI]
    • Inci, G and Kronenburg, A and Weeber, R and Pflüger, D.
      "Langevin Dynamics Simulation of Transport and Aggregation of Soot Nano-particles in Turbulent Flows".
      Flow, Turbulence and Combustion (1–21), 2017.
      [PDF] (800 KB) [DOI]
    • Huang, Shilin and Pessot, Giorgio and Cremer, Peet and Weeber, Rudolf and Holm, Christian and Nowak, Johannes and Odenbach, Stefan and Menzel, Andreas M. and Auernhammer, Günter K..
      "Buckling of paramagnetic chains in soft gels".
      Soft Matter 12(1)(228–237), 2016.
      [PDF] (3 MB) [DOI]
    • Weeber, Rudolf and Kantorovich, Sofia and Holm, Christian.
      "Ferrogels cross-linked by magnetic particles: Field-driven deformation and elasticity studied using computer simulations".
      The Journal of Chemical Physics 143(15)(154901), 2015.
      [PDF] (4 MB) [DOI]
    • Pessot, Giorgio and Weeber, Rudolf and Holm, Christian and Löwen, Hartmut and Menzel, Andreas M..
      "Towards a scale-bridging description of ferrogels and magnetic elastomers".
      Journal of Physics: Condensed Matter 27(32)(325105), 2015.
      [PDF] (2 MB) [DOI]
    • Weeber, Rudolf and Kantorovich, Sofia and Holm, Christian.
      "Ferrogels cross-linked by magnetic nanoparticles – Deformation mechanisms in two and three dimensions studied by means of computer simulations".
      Journal of Magnetism and Magnetic Materials 383(262–266), 2015.
      [PDF] (3 MB) [DOI]
    • Rudolf Weeber.
      "Simulation of novel magnetic materials in the field of soft matter".
      PhD thesis, University Stuttgart, 2014.
      [PDF] (105 MB)
    • Inci, G. and Arnold, A. and Kronenburg, A. and Weeber, R..
      "Modeling Nanoparticle Agglomeration using Local Interactions".
      Aerosol Science and Technology 48(8)(842), 2014.
      [DOI]
    • Weeber, Rudolf and Klinkigt, Marco and Kantorovich, Sofia and Holm, Christian.
      "Microstructure and magnetic properties of magnetic fluids consisting of shifted dipole particles under the influence of an external magnetic field".
      The Journal of Chemical Physics 139(21)(214901), 2013.
      [PDF] (2 MB) [DOI] [URL]
    • Klinkigt, Marco and Weeber, Rudolf and Kantorovich, Sofia and Holm, Christian.
      "Cluster formation in systems of shifted-dipole particles".
      Soft Matter 9(3535–3546), 2013.
      [PDF] (893 KB) [DOI]
    • Weeber, R. and Harting, J..
      "Hydrodynamic interactions in active colloidal crystal microrheology".
      Physical Review E 86(057302), 2012.
      [PDF] (281 KB) [DOI]
    • Weeber, Rudolf and Kantorovich, Sofia and Holm, Christian.
      "Deformation mechanisms in 2D magnetic gels studied by computer simulations".
      Soft Matter 8(9923–9932), 2012.
      [PDF] (2 MB) [DOI]
    • Bachthaler, Sven and Sadlo, Filip and Weeber, Rudolf and Kantorovich, Sofia and Holm, Christian and Weiskopf, Daniel.
      "Magnetic Flux Topology of 2D Point Dipoles".
      Computer Graphics Forum 31(3, Part 1)(955–964), 2012.
      [PDF] (3 MB) [DOI]
    • Marco Klinkigt and Rudolf Weeber and Sofia Kantorovich and Christian Holm.
      "System of particles with shifted magnetic dipoles".
      Magnetohydrodynamics 47(143–148), 2011.
      [PDF] (400 KB)
    • Sofia Kantorovich and Rudolf Weeber and Juan J. Cerdà and Christian Holm.
      "Magnetic particles with shifted dipoles".
      JMMM 323(10)(1269–1272), 2011.
      [PDF] (401 KB) [DOI]
    • Sofia Kantorovich and Rudolf Weeber and Juan J. Cerdà and Christian Holm.
      "Ferrofluids with shifted dipoles: ground state structures".
      Soft Matter 7(11)(5217–5227), 2011.
      [PDF] (518 KB) [DOI]
    • Krewitt, Wolfram and Nienhaus, Kristina and Roloff, Nils and Weeber, Rudolf and Reeg, Matthias and Weimer-Jehle, Wolfgang and Wassermann, Sandra and Fuchs, Gerhard and Kast, Thomas and Schmidt, Bernd and Leprich, Uwe and Hauser, Ev.
      "Analyse von Rahmenbedingungen für die Integration erneuerbarer Energien in die Strommärkte auf der Basis agentenbasierter Simulation".
      2011.
      [URL]
    • C. Gutsche and M. M. Elmahdy and K. Kegler and I. Semenov and T. Stangner and O. Otto and O. Ueberschär and U. F. Keyser and M. Krueger and M. Rauscher and R. Weeber and J. Harting and Y. W. Kim and V. Lobaskin and R. R. Netz and F. Kremer.
      "Micro-rheology on (polymer-grafted) colloids using optical tweezers".
      Journal of Physics: Condensed Matter 23(184114), 2011.
      [PDF] (2 MB) [DOI]
    • C. Gutsche and K. Kremer and M. Krüger and M. Rauscher and R. Weeber and J. Harting.
      "Colloids dragged through a polymer solution: experiment, theory and simulation".
      Journal of Chemical Physics 129(084902), 2008.
      [PDF] (786 KB) [Preprint]
    • Rudolf Weeber.
      "Dynamic Simulations Of Colloids And Their Interactions".
      Master's thesis, University of Stuttgart, 2008.


CV

  • 2000: Abitur with majors in politics and physics
  • 2000 - 2008: Studies of physics at the University of Stuttgart
Specializations: Simulation methods, electronic structure of condensed matter
Diplomarbeit: "Dynamical simulation of colloids and their interactions" concerning local jamming effects in optical tweezer experiments.
Advisor: J. Harting
  • 2008: Research assistant at the Insitute for Computational Physics, University of Stuttgart
Work on fluid-particle coupling schemes in SRD/MD simulations
  • 2008: Intern at the German Aerospace Center in the Department of Systems Analysis and Technology Assessment
Agent-based simulations on the market integration of renewable energies
  • 2008 - 2009: Researcher in the same group
  • 2009 - 2015: Doctoral researcher at the Institute for Computational Physics and in the graduate school of the Stuttgart Research Center for Simulation Technology, University of Stuttgart
Thesis: "Simulation of novel soft magnetic materials"
Advisor: C. Holm
  • since 2015: Postdoc in the same group
Work on magnetic gels and elastomers
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