| 圆管狭窄下游湍流场流动分离区流体力学实验模型的设计和调试 |
| |
| 引用本文： | 郭应强,石应康,许唯临,赁可,刘善均,张建民,蒙炜. 圆管狭窄下游湍流场流动分离区流体力学实验模型的设计和调试[J]. 生物医学工程学杂志, 2005, 22(1): 38-42 |
| |
| 作者姓名： | 郭应强 石应康 许唯临 赁可 刘善均 张建民 蒙炜 |
| |
| 作者单位： | 1. 四川大学,华西医院,胸心血管外科,成都,610041
2. 四川大学,高速水力学国家重点实验室,成都,610044 |
| |
| 基金项目： | 国家自然科学基金资助项目 (3 0 2 70 3 5 8)，CMB综合发展基金资助项目 (96-63 6)，CMB医学教育与科研基金项目 (#88-4 86) |
| |
| 摘 要： | 研究旨在建立和调试体外圆管狭窄模型 ,使之能够配合粒子成像流速仪 (PIV)进行狭窄下游流动分离区速度、湍流切应力的检测和压力传感器的压力检测。采用粒子成像流速仪和压力传感器 ,对模型狭窄下游定常流湍流场速度、湍流切应力和压力进行定量检测 ,初步认识流动分离区速度、切应力和压力的分布特征。实验模型能够较好地配合 PIV和压力传感器进行流动分离区速度、湍流切应力和压力的定量检测 ;圆管狭窄下游流动分离区边壁局部存在明显的低速度、低压力和低切应力分布。
|
| 关 键 词： | 狭窄 流动分离 湍流切应力 粒子成像流速仪 |
| 收稿时间： | 2004-05-21 |
| 修稿时间： | 2004-05-212004-10-25 |
Design and Adjustment of a Hydrodynamic Model of Turbulent Flow Separation Area for In Vitro Experiment on the Downstream of Tubal Stenosis |
| |
| Guo Yingqiang, Shi Yingkang, Xue Weilin, Lin Ke, Liu Shanjun, Zhang Jianmin, Meng We. Design and Adjustment of a Hydrodynamic Model of Turbulent Flow Separation Area for In Vitro Experiment on the Downstream of Tubal Stenosis[J]. Journal of biomedical engineering, 2005, 22(1): 38-42 |
| |
| Authors: | Guo Yingqiang Shi Yingkang Xue Weilin Lin Ke Liu Shanjun Zhang Jianmin Meng We |
| |
| Affiliation: | 1. Department of Cardiovascular Surgery, West China Hospital of Sichuan University. Chengdu 610041,China; 2 .The State Key Lab of Hydraulics on High Speed Flow, Sichuan University. Chengdu 610044,China |
| |
| Abstract: | This paper reports the establishment of a model of turbulent flow separation area for experiment on the downstream of tubal stenosis, and adjust it to cooperate with the velocity and turbulent shear stress (TSS) detection by means of the particle image velocimetry (PIV), and with the pressure detection of pressure sensor in vitro. The velocity, TSS and wall pressure characteristics of the downstream of tubal stenosis were quantitatively detected and analyzed via the PIV and pressure sensor. And the hydrodynamic characteristics of the velocity, TSS and wall pressure in the flow separation area were primarily understood. The model can cooperate smoothly with the PIV and pressure sensor to detect the velocity, TSS and wall pressure; there exist low velocity, low TSS and low pressure in the flow separation area downstream of tubal stenosis. |
| |
| Keywords: | Stenosis Flow separation Turbulent shear stress (TSS) Particle image velocimetry (PIV) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
