[1]张金鑫,张洪明,张立翔,等.DeBakey Ⅲ型胸主动脉夹层红细胞流动大规模数值模拟 [J].介入放射学杂志,2018,27(09):865-869.
 ZHANG Jinxin,ZHANG Hongming,ZHANG Lixiang,et al.Large- scale numerical simulation of erythrocyte flow in type Ⅲ of DeBakey thoracic aortic dissection[J].journal interventional radiology,2018,27(09):865-869.
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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
27
期数:
2018年09期
页码:
865-869
栏目:
实验研究
出版日期:
2018-09-25

文章信息/Info

Title:
Large- scale numerical simulation of erythrocyte flow in type Ⅲ of DeBakey thoracic aortic dissection
作者:
张金鑫 张洪明 张立翔 张金辉
Author(s):
ZHANG Jinxin ZHANG Hongming ZHANG Lixiang ZHANG Jinhui.
Department of Engineering Mechanics, Kunming University of Technology, Kunming, Yunnan Province 650500, China
关键词:
【关键词】 主动脉夹层 多相流 数值模拟 颗粒 生物学特性
文献标志码:
A
摘要:
【摘要】 目的 模拟DeBakey Ⅲ型胸主动脉夹层(AD)内红细胞流动,揭示红细胞流动规律,从颗粒视角解释AD危害,为治疗提供科学依据。方法 将AD血液区域模型,导入计算流体力学(CFD)软件进行大规模数值模拟。设置血液为含红细胞固态颗粒的Lagrange多相流,模拟红细胞颗粒运动,颗粒受力包含阻力、剪切升力、压力梯度力、虚拟质量力、重力,忽略热能传递。追踪红细胞轨迹与分布。结果 获得红细胞体积分数图与红细胞轨迹图。结论 假腔近心端膨胀处缺少新鲜血液涌入,血液内缓解症状有益物质与此处血管壁接触不良,导致血管壁易损伤,不易修复;此处存在低速旋涡,弯曲缠绕的红细胞轨迹显示血栓易形成。血栓可能进入真腔和假腔并黏附于血管壁,进而造成血管堵塞和破裂。AD输血和红细胞输送能力较差。

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备注/Memo

备注/Memo:
(收稿日期:2017-11-30)
(本文编辑:边 佶)
更新日期/Last Update: 2018-09-11