In the present study, the nonlinear model of non-Newtonian blood flow in cosine-shape stenosed elastic artery is numerically examined. The model is carried out for axisymmetric, two-dimensional and fully developed blood flow. The vessel wall is assumed to be have time-dependent radius that is important factor for study of blood flow. The cosine-shape stenosis convert to rigid artery by using a ...

Beside pulsatile motion of vessel, there are two additional movements of coronary arteries. One is from the pulsatile momentum of coronary artery while dampened by the supporting soft tissues. Another movement is responsible by contracting myocardium throughout the cardiac cycle with part of epicardial artery tethered to myocardium. In this study, four different external boundary conditions of ...

Within the framework of the EU (European Union) project SARNET (Severe Accident Research Network), spray experiments were performed in the TOSQAN facility in France. The experiments, Test 101 (thermal hydraulic part, without He release) and Test 113 (dynamic part, with He release), were selected for benchmark calculation with different CFD (Computational Fluid Dynamics) and LP (Lumped Parameter...

Blood vessels exhibit highly nonlinear, anisotropic behaviour with numerous mechanical interactions. Since exact modelling of all involved effects would yield a computationally prohibitive procedure, practical clinical simulation tool needs to account for minimum threshold relevant factors. In this study, we analyse needed assumptions reliable the end-to-side anastomosis. The artery wall is mod...