| 锥形血管内血液脉动流的数值模拟 |
| |
| 引用本文： | 邱霖,范毅方,董兵超,袁支润.锥形血管内血液脉动流的数值模拟[J].生物医学工程学杂志,2004,21(4):558-561. |
| |
| 作者姓名： | 邱霖 范毅方 董兵超 袁支润 |
| |
| 作者单位： | 四川大学,生物力学研究所,成都,610041 |
| |
| 基金项目： | 国家自然科学基金资助项目 ( 19972 0 44 )，高等学校博士学科点专项基金资助项目 ( 2 0 0 10 610 0 2 8) |
| |
| 摘 要： | 将锥形血管与人体血液的脉动流动联系起来研究发展中的血液流动问题 ,给出了锥形血管的几何模型、血液流动的理论模型、生理边界条件以及计算条件 ;根据人体生理脉动流条件 ,建立了血流平均速度函数 ,并就此对三维锥形血管内的血液脉动流动进行了数值模拟 ,获得心动周期不同时刻的轴向速度、径向速度、断面压力和轴向压力分布曲线。将数值模拟计算结果与实验和分析计算结果进行对照 ,讨论了锥形血管内血液脉动流的特点。
|
| 关 键 词： | 锥形血管 脉动流动 数值解 非线性 三维 |
The Numerical Simulation of Pulsatile Flow in a Tapered Blood Vessel |
| |
| Lina Qiu,Yifang Fan,Bingchao Dong,Zhirun Yuan.The Numerical Simulation of Pulsatile Flow in a Tapered Blood Vessel[J].Journal of Biomedical Engineering,2004,21(4):558-561. |
| |
| Authors: | Lina Qiu Yifang Fan Bingchao Dong Zhirun Yuan |
| |
| Institution: | Biomechanics Institute, Sichuan University, Chengdu 610041, China. qiulin1031@163.com |
| |
| Abstract: | The tapered blood vessel is associated with the human physiological pulsatile blood flow in this study to address the questions about the developing flow. The geometry model of tapered blood vessel,theoretical models of blood flow,physiological boundary conditions and calculation conditions are proposed. An average blood flow function is established according to the physiological pulsatile flow conditions. The pulsatile flow in a 3-D tapered blood vessel is simulated numerically with the flow function. The distributions of velocity and pressure on different time of the cardiac cycle are obtained. The numerical simulation outcomes are compared with the experimental and analytical results. The characteristics of the pulsatile flow in a tapered blood vessel are discussed in this paper. |
| |
| Keywords: | Tapered blood vessel Pulsatile flow Numerical simulation Nonlinear Three dimensions |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
