This paper shows a steady simulation of blood flow in the major head and neck arteries as if they
had rigid walls, using patient specific geometry and CFD software FLUENT
R . The Artery geometry
is obtained by CT–scan segmentation with the commercial software ScanIPTM. A cause and
effect study with various Reynolds numbers, viscous models and blood fluid models is provided.
Mesh independence is achieved through wall y+ and pressure gradient adaption. It was found, that
a Newtonian fluid model is not appropriate for all geometry parts, therefore the non–Newtonian
properties of blood are required for small vessel diameters and low Reynolds numbers. The k–!
turbulence model is suitable for the whole Reynolds numbe