title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÑÐºÑÑÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð·Ð° ÑÑÐµÐ½Ð¾Ð·Ð¾Ð¼, ÑÐ°ÑÐ¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð¼ Ð½Ð¸Ð¶Ðµ Ð¿Ð¾ Ð¿Ð¾ÑÐ¾ÐºÑ Ð¾Ñ Ð±Ð¸ÑÑÑÐºÐ°ÑÐ¸Ð¸ Ð±ÑÑÑÐ½Ð¾Ð¹ Ð°Ð¾ÑÑÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Numerical simulation of the flow behind stenosis, located downstream from abdominal aorta bifurcation
Creators: name: ÐÐ°ÑÐ°ÑÐ¾Ð², Ð¢Ð¸ÑÐ¾Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð³ÐµÐ¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸ Ð·Ð½Ð°ÑÐ¸Ð¼ÑÐ¹ ÑÑÐµÐ½Ð¾Ð·
Ð¾Ð´Ð½Ð¾ÑÑÐ¾ÑÐ¾Ð½Ð½Ð¸Ð¹ ÑÑÐµÐ½Ð¾Ð·
Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½ÑÐ¹ ÑÑÐµÐ½Ð¾Ð·
Ð¼Ð¾Ð´ÐµÐ»Ñ Ð±Ð¸ÑÑÑÐºÐ°ÑÐ¸Ð¸ Ð±ÑÑÑÐ½Ð¾Ð¹ Ð°Ð¾ÑÑÑ
Ð¿Ð¾Ð´Ð²Ð·Ð´Ð¾ÑÐ½ÑÐµ Ð°ÑÑÐµÑÐ¸Ð¸
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ÑÐµÑÐ¸ÑÐºÑÐ»ÑÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð·Ð¾Ð½Ñ
Ð¾ÑÑÐµÐ´Ð½ÐµÐ½Ð½ÑÐµ ÑÐ´Ð²Ð¸Ð³Ð¾Ð²ÑÐµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
Ð¸Ð½Ð´ÐµÐºÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ ÑÐ´Ð²Ð¸Ð³Ð¾Ð²ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹
hemodinamycally significant stenosis
one-sided stenosis
axisymmetric stenosis
abdominal aorta bifurcation
iliac arteries
moment of maximum flow rate
time-averaged wall shear stress
oscillatory shear index

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð² Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð±Ð¸ÑÑÑÐºÐ°ÑÐ¸Ð¸ Ð±ÑÑÑÐ½Ð¾Ð¹ Ð°Ð¾ÑÑÑ Ð¸ Ð¿Ð¾Ð´Ð²Ð·Ð´Ð¾ÑÐ½ÑÑ Ð°ÑÑÐµÑÐ¸Ð¹ ÑÑÐµÐ´Ð½ÐµÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÐºÐ¾Ð½ÑÐ¸Ð³ÑÑÐ°ÑÐ¸Ð¸ Ñ Ð½Ð°Ð»Ð¸ÑÐ¸ÐµÐ¼ ÑÑÐµÐ½Ð¾Ð·Ð° Ð² Ð¿ÑÐ°Ð²Ð¾Ð¹ Ð¾Ð±ÑÐµÐ¹ Ð¿Ð¾Ð´Ð²Ð·Ð´Ð¾ÑÐ½Ð¾Ð¹ Ð°ÑÑÐµÑÐ¸Ð¸. ÐÑÐ»Ð¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÑÑÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¸ ÑÐ°Ð·Ð½Ð¾Ð¹ ÑÐ¾ÑÐ¼Ðµ ÑÑÐµÐ½Ð¾Ð·Ð° (Ð¾Ð´Ð½Ð¾ÑÑÐ¾ÑÐ¾Ð½Ð½Ð¸Ð¹ Ð¸ Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½ÑÐ¹) Ð¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÑÑÐ¶ÐµÐ½Ð¸Ñ (STI = 70% Ð¸ 50%). ÐÑÐ»Ð¾ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ ÑÐ¾ÑÐ¼Ñ Ð¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÑÑÐµÐ½Ð¾Ð·Ð° Ð½Ð° ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð¿Ð¾ÑÐ¾ÐºÐ°. ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ ANSYS CFX. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¾ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÐ¾ÑÐ¼Ð° Ð¸ ÑÑÐµÐ¿ÐµÐ½Ñ ÑÑÐµÐ½Ð¾Ð·Ð° Ð¿Ð¾Ð²Ð»Ð¸ÑÐ»Ð¸ Ð½Ð° ÑÑÑÑÐºÑÑÑÑ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐ¾Ð»ÑÐºÐ¾ Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ ÑÑÐµÐ½Ð¾Ð·Ð°. ÐÐ°Ð»Ð¸ÑÐ¸Ðµ ÑÑÐµÐ½Ð¾Ð·Ð° Ð¿Ð¾Ð²Ð»Ð¸ÑÐ»Ð¾ Ð½Ð° Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑÐ¸ÑÐºÑÐ»ÑÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ñ Ð²Ð²ÐµÑÑ Ð¿Ð¾ Ð¿Ð¾ÑÐ¾ÐºÑ, Ð¸ Ð´Ð²ÑÑ Ð·Ð¾Ð½ Ð½Ð¸Ð¶Ðµ Ð¿Ð¾ Ð¿Ð¾ÑÐ¾ÐºÑ Ð·Ð° ÑÑÐµÐ½Ð¾Ð·Ð¾Ð¼, Ð´Ð»Ð¸Ð½Ð° ÐºÐ¾ÑÐ¾ÑÑÑ Ð·Ð°Ð²Ð¸ÑÐ¸Ñ Ð¾Ñ ÑÐ¾ÑÐ¼Ñ ÑÑÐµÐ½Ð¾Ð·Ð°. Ð¢Ð°ÐºÐ¶Ðµ ÑÐ¾ÑÐ¼Ð° Ð¿Ð¾Ð²Ð»Ð¸ÑÐ»Ð° Ð½Ð° Ð¼ÐµÑÑÐ¾Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð·Ð¾Ð½, Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´Ð²ÐµÑÐ³Ð½ÑÑÑÑ Ð¿Ð¾ÑÐ°Ð¶ÐµÐ½Ð¸Ñ ÑÐ¾ÑÑÐ´Ð¸ÑÑÐ¾Ð¹ ÑÑÐµÐ½ÐºÐ¸.
description: The given work is devoted to studying the flow in the model of the average configuration of abdominal aorta bifurcation and iliac arteries with stenosis in right common iliac artery. Parametric computations of the flow were done for different shapes of stenosis (one-sided and axisymmetric) and different degrees of obstruction (STI = 70% and 50%). The influence of the stenosis shape and degree of obstruction on the flow characteristics was analyzed. The analysis was carried out by the method of mathematical modeling with use of ANSYS CFX software. As a result, shape and degree of stenosis affected the flow structure only in region near the stenosis. Presence of stenosis resulted in formation of reverse flow zone both upstream and downstream. Shape of stenosis influenced the localization of Â«dangerousÂ» zones â regions mostly prone for lesions.