A simplified model for red cell dynamics in small blood vessels
نویسنده
چکیده
A simple mechanism for the confinement of red cells in the middle of narrow blood vessels is proposed. In the presence of a quadratic shear, red cells deform in such a way to loose foreaft symmetry and to achieve a fixed orientation with respect to the flow. This leads to a drift away from the vessel walls, when the vessel diameter goes below a critical value depending on the viscoelastic properties and the dimensions of the cell. PACS numbers: 47.15.Gf, 47.55.Kf, 87.45.Hw Submitted to Phys. Rev. Lett. 5/8/98
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