中国物理B ›› 2008, Vol. 17 ›› Issue (3): 1041-1049.doi: 10.1088/1674-1056/17/3/049

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Three-dimensional lattice Boltzmann method for simulating blood flow in aortic arch

康秀英1, 吉驭嫔1, 刘大禾1, 金永娟2   

  1. (1)Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China; (2)Institute of Hematology, Chinese Academy of Medical Sciences, Tianjin 300020, China
  • 收稿日期:2006-12-11 修回日期:2007-09-14 出版日期:2008-03-04 发布日期:2008-03-04
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10274006), and Education Ministry of China (Grant No 03011).

Three-dimensional lattice Boltzmann method for simulating blood flow in aortic arch

Kang Xiu-Ying(康秀英)a)†, Ji Yu-Pin(吉驭嫔)a), Liu Da-He(刘大禾)a), and Jin Yong-Juan(金永娟)b)   

  1. a Applied Optics Beijing Area Major Laboratory, Department of Physics,Beijing Normal University, Beijing 100875, China; b Institute of Hematology, Chinese Academy of Medical Sciences, Tianjin 300020, China
  • Received:2006-12-11 Revised:2007-09-14 Online:2008-03-04 Published:2008-03-04
  • Supported by:
    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$^\circ$ bend are obtained, and the results also demonstrate that the lattice Boltzmann method is suitable for simulating the flow in 3D large-curved vessels.

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.

Key words: lattice Boltzmann method, aortic arch, secondary flow, wall shear stress

中图分类号:  (Blood flow in cardiovascular system)

  • 47.63.Cb
87.19.U- (Hemodynamics ?)