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@ARTICLE{Ji:16775,
      author       = {Ji, S. and Jiang, R. and Winkler, R.G. and Gompper, G.},
      title        = {{M}esoscale hydrodynamic modeling of a colloid in
                      shear-thinning viscoelastic fluids under shear flow},
      journal      = {The journal of chemical physics},
      volume       = {135},
      issn         = {0021-9606},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {PreJuSER-16775},
      pages        = {134116},
      year         = {2011},
      note         = {We thank Jan Vermant (Leuven), Ingo O. Gotze, and
                      Chien-Cheng Huang (Julich) for stimulating discussions.
                      Financial support by the EU FP7 Collaborative Research
                      Project "Nanodirect" (NMP4-SL-2008-213948) is gratefully
                      acknowledged.},
      abstract     = {In order to study the dynamics of colloidal suspensions
                      with viscoelastic solvents, a simple mesoscopic model of the
                      solvent is required. We propose to extend the multiparticle
                      collision dynamics (MPC) technique--a particle-based
                      simulation method, which has been successfully applied to
                      study the hydrodynamic behavior of many complex fluids with
                      Newtonian solvent--to shear-thinning viscoelastic solvents.
                      Here, the normal MPC particles are replaced by dumbbells
                      with finite-extensible nonlinear elastic (FENE) springs. We
                      have studied the properties of FENE-dumbbell fluids under
                      simple shear flow with shear rate ̇γ. The stress tensor is
                      calculated, and the viscosity η and the first normal-stress
                      coefficient Ψ(1) are obtained. Shear-thinning behavior is
                      found for reduced shear rates Γ= ̇γτ>1, where τ is a
                      characteristic dumbbell relaxation time. Here, both η and
                      Ψ(1) display power-law behavior in the shear-thinning
                      regime. Thus, the FENE-dumbbell fluid with MPC collisions
                      provides a good description of viscoelastic fluids. As a
                      first application, we study the flow behavior of a colloid
                      in a shear-thinning viscoelastic fluid in two dimensions. A
                      slowing down of the colloid rotation in a viscoelastic fluid
                      compared to a Newtonian fluid is obtained, in agreement with
                      recent numerical calculations and experimental results.},
      keywords     = {J (WoSType)},
      cin          = {IAS-2 / ICS-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)ICS-2-20110106},
      pnm          = {BioSoft: Makromolekulare Systeme und biologische
                      Informationsverarbeitung},
      pid          = {G:(DE-Juel1)FUEK505},
      shelfmark    = {Physics, Atomic, Molecular $\&$ Chemical},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:21992291},
      UT           = {WOS:000295625400020},
      doi          = {10.1063/1.3646307},
      url          = {https://juser.fz-juelich.de/record/16775},
}