Numerical simulation of pulsating flow in three-dimensional conical arteries

Curved arteries;  taper angle;  local energy loss;  Local stenosis

Under normal physiological pulsation flow, the computational fluid dynamics method and the basic principles of hemodynamics were used to numerically simulate and visualize the blood pulsation flow in the three-dimensional tapering tapered curved artery. The pressure distribution and velocity distribution of blood flow in curved arteries with taper angle at different times in the cardiac cycle were calculated. By studying the blood flow rate and pressure distribution in the lumen of curved arteries and their formation of local stenosis, this paper provides a more reliable theoretical basis for the study of the causes and exclusion methods of atherosclerosis. The results show that the changes of taper angle and curvature of arterial wall have a great influence on the pressure, velocity distribution and local energy loss of blood flow in the pulsating flow under abnormal conditions, which is consistent with the actual situation.