Deformation of Two-Dimensional Nonuniform-Membrane Red Blood Cells Simulated by a Lattice Boltzmann Model

LI Hua-Bing; JIN Li; QIU Bing

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Deformation of Two-Dimensional Nonuniform-Membrane Red Blood Cells Simulated by a Lattice Boltzmann Model

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To study two-dimensional red blood cells deforming in a shear flow with the membrane nonuniform on the rigidity and mass, the membrane is discretized into equilength segments. The fluid inside and outside the red blood cell is simulated by the D2Q9 lattice Boltzmann model and the hydrodynamic forces exerted on the membrane from the inner and outer of the red blood cell are calculated by a stress-integration method. Through the global deviation from the curvature of uniform-membrane, we find that when the membrane is nonuniform on the rigidity, the deviation first decreases with the time increases and implies that the terminal profile of the red blood cell is static. To a red blood cell with the mass nonuniform on the membrane, the deviation becomes more large, and the mass distribution affects the profile of the two sides of the flattened red blood cell in a shear flow.

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《中国物理快报：英文版》 |2008年第11期|4042-4045|共4页
作者
LI Hua-Bing; JIN Li; QIU Bing;
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Department of Information Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004;

Department of Information Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004;

Department of Information Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004;

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中图分类化学;
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Deformation of Two-Dimensional Nonuniform-Membrane Red Blood Cells Simulated by a Lattice Boltzmann Model

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