THE ABDOMINAL AORTA BIFURCATION WITH ILIAC ARTERIES: THE WALL ELASTICITY EFFECT ON THE FLOW STRUCTURE

被引：2

作者：

Kotmakova, A. A. ^{[1
]}

Gataulin, Ya A. ^{[2
]}

Yukhnev, A. D. ^{[2
]}

Zaitsev, D. K. ^{[2
]}

机构：

[1] Sci Res Inst Optoelect Instrument Engn, 29 Leningradskaya St, Sosnovyi Bor 188540, Leningrad Regio, Russia

[2] Peter Great St Petersburg Polytech Univ, 29 Politechnicheskaya St, St Petersburg 195251, Russia

来源：

ST PETERSBURG POLYTECHNIC UNIVERSITY JOURNAL-PHYSICS AND MATHEMATICS | 2020年 / 13卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

abdominal aorta's bifurcation; numerical simulation; wall elasticity; blood flow structure; BLOOD-FLOW; ANEURYSM; PATTERNS; MODEL;

D O I：

10.18721/JPM.13407

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For the first time, a numerical study of the effect of vascular elasticity on blood flow has been carried out using a model of the abdominal aorta bifurcation with iliac arteries of the average statistical geometry. The greatest effect of elasticity was shown to be observed in the abdominal aorta before bifurcation where an initial oval cross-section shaping into a circle. Taking into account the elasticity of the walls, the flow structure remained unchanged, but the maximum flow rate increased by 40 % in the abdominal aorta. In the abdominal-aortic bifurcation region the cycle-averaged shear stresses decreased by 20 %, and their oscillation index increased by 60 %.

引用

页码：89 / 101

页数：13

共 24 条

[1] Stiffness and diameter of the common carotid artery and abdominal aorta in women
Ahlgren, AR
Hansen, F
Sonesson, B
Lanne, T
[J]. ULTRASOUND IN MEDICINE AND BIOLOGY, 1997, 23 (07) : 983 - 988
[2] Alimohammadi M, 2015, LECT N BIOINFORMAT, V9044, P594, DOI 10.1007/978-3-319-16480-9_57
[3] Begun P. I., 2004, MODELIROVANIYE BIOME
[4] Flow patterns in an endovascular stent-graft for abdominal aortic aneurysm repair
Chong, CK
How, TV
[J]. JOURNAL OF BIOMECHANICS, 2004, 37 (01) : 89 - 97
[5] AAA disease - Mechanism, stratification, and treatment
Dalman, Ronald L.
Tedesco, Maureen M.
Myers, Jonathon
Taylor, Charles A.
[J]. ABDOMINAL AORTIC ANEURYSM: GENETICS, PATHOPHYSIOLOGY AND MOLECULAR BIOLOGY, 2006, 1085 : 92 - 109
[6] A coupled momentum method for modeling blood flow in three-dimensional deformable arteries
Figueroa, C. Alberto
Vignon-Clementel, Irene E.
Jansen, Kenneth E.
Hughes, Thomas J. R.
Taylor, Charles A.
[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2006, 195 (41-43) : 5685 - 5706
[7] Structure of the secondary flow in the bifurcation of a blood vessel: patient-specific modeling and clinical Doppler measurements
Gataulin, Y. A.
Yukhnev, A. D.
Zaitsev, D. K.
Smirnov, E. M.
Kulikov, V. P.
Kirsanov, R. I.
[J]. INTERNATIONAL CONFERENCE PHYSICA.SPB/2018, 2018, 1135
[8] Gataulin Ya. A., 2016, ST PETERSBURG STATE, V4, P48
[9] Gataulin Ya. A., 2015, ST PETERSBURG STATE, V4, P36
[10] Spiral blood flow in aorta-renal bifurcation models
Javadzadegan, Ashkan
Simmons, Anne
Barber, Tracie
[J]. COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING, 2016, 19 (09) : 964 - 976

← 1 2 3 →