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About this book
The 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.
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Table of contents (11 chapters)
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Front Matter
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Numerical model for simulations of red blood cell suspensions
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Front Matter
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Simulation results and interpretation
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Front Matter
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Back Matter
Authors and Affiliations
About the author
Timm Krüger is physicist with focus on computational modeling of complex fluids at the Department of Applied Physics, Eindhoven University of Technology.
Bibliographic Information
Book Title: Computer Simulation Study of Collective Phenomena in Dense Suspensions of Red Blood Cells under Shear
Authors: Timm Krüger
DOI: https://doi.org/10.1007/978-3-8348-2376-2
Publisher: Vieweg+Teubner Verlag Wiesbaden
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer Spektrum | Springer Fachmedien Wiesbaden GmbH 2012
Softcover ISBN: 978-3-8348-2375-5Published: 18 July 2012
eBook ISBN: 978-3-8348-2376-2Published: 02 October 2012
Edition Number: 1
Number of Pages: XIII, 165
Topics: Physics, general