Aortic flow simulation. Modeling and application of Autodesk CFD 2024 using computational fluid dynamics
DOI:
https://doi.org/10.22201/fm.30617243e.2025.4.110Keywords:
Aorta, Computational fluid dynamics, Blood circulation, Computational modelAbstract
In the search for a better understanding of the
blood flow processes occurring in the aorta artery, using the computational fluid dynamics technique, aortic flow was simulated with the aim of studying and analyzing some hemodynamic behaviors such as velocity, viscosity, vorticity and turbulence intensity mainly in a healthy patient. In addition, some of the possible health implications were analyzed, such as the pressure exerted on the aortic walls and the occurrence of aneurysms. As a first attempt, a geometry of the aorta was modeled with the ONSHAPE platform with average measurements of healthy patients and the blood circulation in steady and transient states was simulated with the Autodesk CFD 2024 program. Blood circulation velocity was found to vary in a range of 1.00-1.56 m/s in the aortic root and 1.00-1.88 m/s in the aortic arch. Viscosity changes were present from 0.05 to 0.80 poises. We also visualized a region called point P located between the end of the aortic arch and the descending aorta, which seems to have the function of decelerating the blood. The possible appearance of temporary empty spaces along the aorta between heartbeats encourages the artery to try to regulate the velocity of the blood. In a second construction of the threedimensional model for a healthy patient,
an area of the lower region of the aortic arch was found to have an average velocity of 1.00 m/s and viscosity of 0.05 poises, the latter probably giving rise to the formation of aneurysms, which should be studied with modern techniques of diagnostic imaging of the interior of the human body.
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