Abstract
A multi-scale, multi-physiological computational hemodynamic solver is developed by coupling an in house CFD (computational fluid dynamics) solver with a lumped parameter model of the whole circulatory system. With this multi-scale solver, a series of hemodynamic computations were carried out for renal arteries of different geometric structures under multi-physiological conditions to investigate the effects of vascular geometric structure and physiological condition on the intravascular fluid dynamics. The results show that hemodyanamics in renal artery are less sensitive to physiological condition than those in aorta, and, by contrast, the geometric structure of renal artery plays a significant role in determining the main characteristics of the intravascular flow patterns.
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