Unsteady simulation of distal blood flow in an end-to-side anastomosed coronary bypass graft with stenosis.
作者： Javad Dargahi , Siamak Najarian , Faramarz Firouzi , Jamshid Afsari
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摘要: In this paper, we report on the unsteady state modeling of blood flow in an end-to-side anastomosed bypass graft, which has a stenosis upstream from junction. coronary artery grafting/surgery (CABG), new arteries are created order to provide heart using other vessels as conduits blocked section patient's arteries. The failure procedures been attributed both intimal hyperplasia (IH) and atherosclerosis. It is believed that these two phenomena are, turn, related local hemodynamic factors. work, three-dimensional computational fluid dynamics analysis used simulate physiological through model stenosed graft with realistic assumption non-Newtonian for human blood. For different repartitions at times cycle, recirculating areas wall shear stress (WSS) studied. Based distribution rates host artery, features investigated influence behavior discussed terms separation points, reattachment stresses. Various differences observed based blood, have not reported before when simplified Newtonian approach utilized.
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