Computational fluid dynamics (CFD) study on the fetal aortic coarctation

3rd International Conference on Energy Equipment Science and Engineering

Zhou, Yue^1 ; Zhang, Yutao^1 ; Wang, Jingying^2

School of Aeronautic Science and Engineering, Beihang University, Beijing

100191, China^1

School of Energy and Power Engineering, Shandong University, Jinan

250061, China^2

关键词: Aortic coarctation;    Cardio-vascular disease;    Computer aided designs (CAD);    Digital model;    Threedimensional (3-d);    Tomographic images;    Two Dimensional (2 D);    Wall shear stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012111/pdf
DOI  :  10.1088/1755-1315/128/1/012111

来源: IOP

【 摘 要 】

Blood flows in normal and coarctate fetal aortas are simulated by the CFD technique using T-rex grids. The three-dimensional (3-D) digital model of the fetal arota is reconstructed by the computer-aided design (CAD) software based on two-dimensional (2-D) ultrasono tomographic images. Simulation results displays the development and enhancement of the secondary flow structure in the coarctate fetal arota. As the diameter narrow ratio rises greater than 45%, the pressure and wall shear stress (WSS) of the aorta arch increase exponentially, which is consistent with the conventional clinical concept. The present study also demonstrates that CFD is a very promising assistant technique to investigate human cardiovascular diseases.