| Three-dimensional lattice Boltzmann method for simulating blood flow in aortic arch |
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| 作者姓名： | 康秀英 吉驭嫔 刘大禾 金永娟 |
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| 作者单位： | Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China;Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China;Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China;Institute of Hematology, Chinese Academy of Medical
Sciences, Tianjin
300020, China |
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| 基金项目： | Project supported by the National
Natural Science Foundation of China (Grant No 10274006), and
Education Ministry of China (Grant No 03011). |
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| 摘 要： | The three-dimensional （3D） lattice Boltzmann models, 3DQ15, 3DQ19 and 3DQ27, under different wall boundary conditions and lattice resolutions have been investigated by simulating Poiseuille flow in a circular cylinder for a wide range of Reynolds numbers. The 3DQ19 model with improved Fillippova and Hanel （FH） curved boundary condition represents a good compromise between computational efficiency and reliability. Blood flow in an aortic arch is then simulated as a typical haemodynamic application. Axial and secondary fluid velocity and effective wall shear stress profiles in a 180° bend are obtained, and the results also demonstrate that the lattice Boltzmann method is suitable for simulating the flow in 3D large-curved vessels.
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| 关 键 词： | 晶体 玻尔兹曼 主动脉弓 剪切压力 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2007-09-14 |
Three-dimensional lattice Boltzmann method for simulating blood flow in aortic arch |
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| Kang Xiu-Ying,Ji Yu-Pin,Liu Da-He and Jin Yong-Juan.Three-dimensional lattice Boltzmann method for simulating blood flow in aortic arch[J].Chinese Physics B,2008,17(3):1041-1049. |
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| Authors: | Kang Xiu-Ying Ji Yu-Pin Liu Da-He and Jin Yong-Juan |
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| Institution: | Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China; Institute of Hematology, Chinese Academy of Medical
Sciences, Tianjin
300020, China |
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| Abstract: | The three-dimensional (3D) lattice Boltzmann models, 3DQ15, 3DQ19 and
3DQ27, under different wall boundary conditions and lattice
resolutions have been investigated by simulating Poiseuille flow in a
circular cylinder for a wide range of Reynolds numbers. The 3DQ19
model with improved Fillippova and Hanel (FH) curved boundary
condition represents a good compromise between computational
efficiency and reliability. Blood flow in an aortic arch is then
simulated as a typical haemodynamic application. Axial and secondary
fluid velocity and effective wall shear stress profiles in a
180$^\circ$ bend are obtained, and the results also demonstrate that
the lattice Boltzmann method is suitable for simulating the flow in
3D large-curved vessels. |
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| Keywords: | lattice Boltzmann method aortic
arch secondary flow wall shear stress |
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