000 02913nam a22003975i 4500
001 978-3-8348-2376-2
003 DE-He213
005 20140220083332.0
007 cr nn 008mamaa
008 130228s2012 gw | s |||| 0|eng d
020 _a9783834823762
_9978-3-8348-2376-2
024 7 _a10.1007/978-3-8348-2376-2
_2doi
050 4 _aQC1-75
072 7 _aPH
_2bicssc
072 7 _aSCI055000
_2bisacsh
082 0 4 _a530
_223
100 1 _aKrüger, Timm.
_eauthor.
245 1 0 _aComputer Simulation Study of Collective Phenomena in Dense Suspensions of Red Blood Cells under Shear
_h[electronic resource] /
_cby Timm Krüger.
264 1 _aWiesbaden :
_bVieweg+Teubner Verlag :
_bImprint: Vieweg+Teubner Verlag,
_c2012.
300 _aXIII, 163 p.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
505 0 _aComplex fluids and their rheology -- Physics of red blood cells and hemorheology -- Numerical model for simulations of red blood cell suspensions -- Physical considerations and ingredients for the numerical model -- Fluid solver: the lattice Boltzmann method -- Fluid-structure interaction: the immersed boundary method -- Membrane model and energetics -- Stress evaluation in combined immersed boundary lattice Boltzmann simulations -- Rheology and microscopic behavior of red blood cell suspensions.
520 _aThe rheology of dense red blood cell suspensions is investigated via computer simulations based on the lattice Boltzmann, the immersed boundary, and the finite element methods. The red blood cells are treated as extended and deformable particles immersed in the ambient fluid. In the first part of the work, the numerical model and strategies for stress evaluation are discussed. In the second part, the behavior of the suspensions in simple shear flow is studied for different volume fractions, particle deformabilities, and shear rates. Shear thinning behavior is recovered. The existence of a shear-induced transition from a tumbling to a tank-treading motion is demonstrated. The transition can be parameterized by a single quantity, namely the effective capillary number. It is the ratio of the suspension stress and the characteristic particle membrane stress. At the transition point, a strong increase in the orientational order of the red blood cells and a significant decrease of the particle diffusivity are observed. However, the average cell deformation shows no signature of the transition.
650 0 _aPhysics.
650 1 4 _aPhysics.
650 2 4 _aPhysics, general.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783834823755
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-8348-2376-2
912 _aZDB-2-PHA
999 _c103966
_d103966