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
康秀英1, 吉驭嫔1, 刘大禾1, 金永娟2
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)
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.
中图分类号: (Blood flow in cardiovascular system)