Numerical simulation of semi-circular section stent grafts
10.3969/j.issn.1673-8225.2009.48.012
- VernacularTitle:半圆形截面血管内支架结构流阻的数值模拟实验
- Author:
Jingjing KONG
;
Hongbin ZHANG
;
Aike QIAO
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2009;13(48):9459-9462
- CountryChina
- Language:Chinese
-
Abstract:
Geometrically virtual models of three-dimensional blood flow field and eight types of mesh stent (different porosity and different stent shape) were constructed using SoildWorks software, and simulation of stented models were performed respectively using finite element software ANSYS11.0 according to computation fluid dynamics method. The flow resistance of the semi-circular section stent model of blood flow from the semi-circular planar surface was greater than the reverse in a certain range of permeability. However, the result was the opposite when the porosity increased to a specific value. For both grid-stent model and sine-stent model, flow resistance of blood that flowed from the stent in both directions increased with the porosity reduction. Under the same porosity and the direction of blood flow from the same stent, the flow resistance of the grid stent model was 1.5 times greater than the sine-stent model. Results showed that there are different effects on the flow resistance in blood flow in different directions from the semi-circular section stent model.
