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Author:

申娜 (申娜.) | 袁奇 (袁奇.) | 崔长琮 (崔长琮.) | Yong Zhao (Yong Zhao.)

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CSCD PKU WF

Abstract:

采用颅内二维Willis环模型,对血管在不同程度狭窄情况下的血液流动进行稳态计算与分析,计算中采用了进出口处的压力边界条件和无滑移固壁条件.计算得到完整环和<em>交通</em>动脉缺失情况下各进出口血管流量变化曲线.所获结果表明,完整Willis环中,前<em>交通</em>动脉的代偿能力在左颈内动脉狭窄率达到25%以后才能得到比较明显的体现;后<em>交通</em>动脉缺失情况下前<em>交通</em>动脉的代偿能力变弱;Willis环的前部和后部有相对独立性,只有在主要进口动脉严重阻塞的时候,单侧的独立性才丧失.

Keyword:

Willis环 计算流体力学 颅内血液定常流动 狭窄

Author Community:

  • [ 1 ] [袁奇]西安交通大学
  • [ 2 ] [崔长琮]西安交通大学第一附属医院
  • [ 3 ] [申娜]西安交通大学
  • [ 4 ] [Yong Zhao]School of Mechanical & Aerospace Engineering

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Source :

应用力学学报

ISSN: 1000-4939

Year: 2009

Issue: 1

Page: 51-54

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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