Blood Flow Simulations in Patient-specific Aorto-coronary Bypass Models: the Role of Boundary Conditions
نویسندگان
چکیده
Computer simulations of bypass hemodynamics can provide a valuable insight into the problem of graft failures, considering the close relationship between the hemodynamics and the patency and overall performance of implanted bypass grafts. However, to be able to reliably predict flow changes brought about by implanted bypass grafts, numerical simulations have to be carried out for physiologically-correct boundary conditions. In this regard, the paper demonstrates how various outlet boundary conditions (constant outlet pressure, Windkessel model and lumped parameter coronary model) can affect the quality of computed blood flow and wall shear stress distributions in relevant parts of two patient-specific aorto-coronary bypass models.
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