Variation of Wall Shear Stress in Daughter Tube of Asymmetrical Arterial Branch Model.

A Nonparametric Method for Estimation of Arterial Wall Shear Stress

1 This paper combines two abstracts that were submitted for review to the 2004 Annual Meeting of the International Society for Magnetic Resonance In Medicine (Kyoto, Japan).

Flow instability and wall shear stress variation in intracranial aneurysms.

We investigate the flow dynamics and oscillatory behaviour of wall shear stress (WSS) vectors in intracranial aneurysms using high resolution numerical simulations. We analyse three representative patient-specific internal carotid arteries laden with aneurysms of different characteristics: (i) a wide-necked saccular aneurysm, (ii) a narrower-necked saccular aneurysm, and (iii) a case with two a...

Effect of spatial variations in shear on diffusion at the wall of an arterial branch.

The effect of spatially varying shear on transport to the wall of a two-dimensional branch was examined, using oxygen as the test solute and the results of earlier fluid mechanical calculations to provide the shear profiles in a region characterizing the aortic bifurcation. The numerical technique employed allowed both blood-phase and mural resistances to solute uptake to be treated simultaneou...

A boundary layer model for wall shear stress in arterial stenosis.

This paper proposes a model for wall shear stress in arterial stenosis based on boundary layer theory. Wall shear stress estimates are obtained by solving the momentum integral equation using the method proposed by Walz and applying this method to various stenosis geometries for Reynolds numbers (Re) of Re = 59-1000. Elevated wall shear stress may be of importance when considering thrombosis an...

Effect of Wall Stiffness on Arterial Wall Shear Stress during Pulse Wave Propagation