Russo, John and Horbach, Jürgen and Sciortino, Francesco and Succi, Sauro (2010) Nanoflows through disordered media: A joint lattice Boltzmann and molecular dynamics investigation. Europhysics Letters, 89 (4), p. 44001. DOI: 10.1209/0295-5075/89/44001. ISSN 0295-5075.
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Official URL: http://iopscience.iop.org/0295-5075/89/4/44001
We investigate nanoflows through dilute disordered media by means of joint lattice Boltzmann (LB) and molecular dynamics (MD) simulations -when the size of the obstacles is comparable to the size of the flowing particles-for randomly located spheres and for a correlated particle-gel. In both cases at sufficiently low solid fraction, Phi < 0.01, LB and MD provide similar values of the permeability. However, for Phi > 0.01, MD shows that molecular-size effects lead to a decrease of the permeability, as compared to the Navier-Stokes predictions. For gels, the simulations highlights a surplus of permeability, which can be accommodated within a rescaling of the effective radius of the gel monomers.
|Title:||Nanoflows through disordered media: A joint lattice Boltzmann and molecular dynamics investigation|
|Journal or Publication Title:||Europhysics Letters|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||p. 44001|
|Keywords:||SMOOTHED PARTICLE HYDRODYNAMICS; FIBROUS POROUS-MEDIA; FLUID-FLOW; PERMEABILITY; SPHERES; SIMULATION|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W FR - Forschung unter Weltraumbedingungen (old)|
|DLR - Research area:||Space|
|DLR - Program:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research theme (Project):||W - Vorhaben Materialwissenschaftliche Forschung (old)|
|Institutes and Institutions:||Institute of Materials Physics in Space|
|Deposited By:||Dr.rer.nat. Jürgen Horbach|
|Deposited On:||05 Nov 2010 10:42|
|Last Modified:||07 Feb 2013 20:15|
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