Computational Fluid Dynamic Analysis of Blood Flow into Normal Right Coronary Artery in different patients
Rafid M. Hannun, Saba J.Muhseen
Mechanical Engineering Department, University of Thi-Qar, 64001, Nasiriyah, Iraq.
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This paper aims to predict the hemodynamic properties of blood flow during the normal Right Coronary Artery. It examines pulsed, laminar blood flow through the state of the right coronary artery in a heart patient. Data for these cases were taken from a catheter laboratory in the Thi – Qar cardiac center. The case for a man born in 1976 who has normal RCA. A non-Newtonian blood model characterized by the Carreau equation was used, and a 3D model was used with the governing equations analyzed using the specified volumetric method. The SIMPLE algorithm has been adopted to link pressure and speed during runoff. Geometric figures are drawn using Auto CAD software and combined with ANSYS FLUENT 18.2 code program. The results showed that the speed increased in areas with a smaller diameter. Non-Newtonian viscosity increases its effect near the center of stenosis. The total pressure is equal to diastolic pressure with little increase. In the normal right coronary artery, it is noticed a difference in wall shear stress (WSS) distributions along the artery. This is due to the tilted axial velocity profile. The results were compared with literature to find high agreement.