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@ARTICLE{Ripoll:47063,
      author       = {Ripoll, M. and Mussawisade, K. and Winkler, R. G. and
                      Gompper, G.},
      title        = {{D}ynamic {R}egimes of {F}luids {S}imulated by
                      {M}ulti-{P}article-{C}ollision {D}ynamics},
      journal      = {Physical review / E},
      volume       = {72},
      number       = {1},
      issn         = {1539-3755},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-47063},
      pages        = {016701},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We investigate the hydrodynamic properties of a fluid
                      simulated with a mesoscopic solvent model. Two distinct
                      regimes are identified, the "particle regime" in which the
                      dynamics is gaslike and the "collective regime" where the
                      dynamics is fluidlike. This behavior can be characterized by
                      the Schmidt number, which measures the ratio between viscous
                      and diffusive transport. Analytical expressions for the
                      tracer diffusion coefficient, which have been derived on the
                      basis of a molecular-chaos assumption, are found to describe
                      the simulation data very well in the particle regime, but
                      important deviations are found in the collective regime.
                      These deviations are due to hydrodynamic correlations. The
                      model is then extended in order to investigate
                      self-diffusion in colloidal dispersions. We study first the
                      transport properties of heavy pointlike particles in the
                      mesoscopic solvent, as a function of their mass and number
                      density. Second, we introduce excluded-volume interactions
                      among the colloidal particles and determine the dependence
                      of the diffusion coefficient on the colloidal volume
                      fraction for different solvent mean-free paths. In the
                      collective regime, the results are found to be in good
                      agreement with previous theoretical predictions based on
                      Stokes hydrodynamics and the Smoluchowski equation.},
      keywords     = {J (WoSType)},
      cin          = {IFF-TH-II},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB31},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK242},
      shelfmark    = {Physics, Fluids $\&$ Plasmas / Physics, Mathematical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000230887100106},
      doi          = {10.1103/PhysRevE.72.016701},
      url          = {https://juser.fz-juelich.de/record/47063},
}