[1]陈若梦,席晓燕,张向红,等.基于流固耦合的颈动脉血液流变力学作用特性分析[J].医学信息,2022,35(02):64-68,74.[doi:10.3969/j.issn.1006-1959.2022.02.016]
 CHEN Ruo-meng,XI Xiao-yan,ZHANG Xiang-hong,et al.Mechanical Properties Analysis of Carotid Hemorheology Based on Fluid-structure Interaction[J].Medical Information,2022,35(02):64-68,74.[doi:10.3969/j.issn.1006-1959.2022.02.016]
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基于流固耦合的颈动脉血液流变力学作用特性分析()
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医学信息[ISSN:1006-1959/CN:61-1278/R]

卷:
35卷
期数:
2022年02期
页码:
64-68,74
栏目:
论著
出版日期:
2022-01-15

文章信息/Info

Title:
Mechanical Properties Analysis of Carotid Hemorheology Based on Fluid-structure Interaction
文章编号:
1006-1959(2022)02-0064-06
作者:
陈若梦席晓燕张向红韩忠义高艳红刘晓雯
唐山学院河北省智能装备数字化设计及过程仿真重点实验室,河北 唐山 063000
Author(s):
CHEN Ruo-mengXI Xiao-yanZHANG Xiang-hongHAN Zhong-yiGAO Yan-hongLIU Xiao-wen
Key Lab of Intelligent Equipment Digital Design and Process Simulation,Tangshan University,Tangshan 063000,Hebei,China
关键词:
颈动脉内皮层流固耦合低剪切力压力
Keywords:
Carotid arteryEndotheliumFluid-structure couplingLow shear forcePressure
分类号:
Q-3
DOI:
10.3969/j.issn.1006-1959.2022.02.016
文献标志码:
A
摘要:
为分析颈动脉中血液流动对内皮层的力学作用特性,本文通过建立颈动脉音叉型模型,基于流固耦合、第四弹性理论和柯西公式的方法研究了颈动脉“结构→力学”作用机制。发现颈动脉中的内皮层结构主要受到血液流动产生的压力和剪切力作用;音叉型颈动脉模型中的弯曲、分叉和直径突变结构使得颈动脉内的流体分布存在区域性紊流和较高的畸变能密度。可见紊流导致了低剪切应力的产生,而较高的畸变能密度说明血压是导致内皮层结构损伤的主要力学因素。
Abstract:
In order to analyze the mechanical characteristics of the carotid blood flow in the endothelium, a tuning fork model of carotid artery was established, and the fluid-solid coupling, fourth elastic theory and Cauchy formulawas used to investigatehe "structure-mechanics" mechanism of carotid artery in this paper. The results show that the endodermal structure of the carotid artery is mainly affected by the pressure and shear forces generated by blood flow. The bending, bifurcation and diameter mutation structures in the tuning fork model of carotid artery lead to regional turbulence and high distortion energy density in the fluid distribution in carotid artery. It is concluded that the turbulence leads to the generation of low shear stress, and the high distortion energy density indicates that blood pressure is the main mechanical factor leading to the damage of endodermal structure.

参考文献/References:

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更新日期/Last Update: 1900-01-01