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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
3D COMPUTATIONAL ANALYSIS OF BLOOD FLOW IN CENTRAL VENOUS CATHETERS FOR PATIENTS SUBMITTED TO HEMODIALYSIS TREATMENT
Submission Author:
Guilherme Comim , RS
Co-Authors:
Guilherme Comim, Guilherme Henrique Fiorot
Presenter: Guilherme Comim
doi://10.26678/ABCM.ENCIT2020.CIT20-0364
Abstract
Hemodialysis is the main technique used for the treatment of chronic renal diseases. In the market, there are several models of equipment and vascular accesses with their peculiarities, being the central venous catheter (CVC) one of the most used. These are presented with great variability of models available for the application, making it necessary to identify the particularities of each model and the procedures used. One way to evaluate such differences is numerical simulation, a tool capable of performing a virtual analysis, non-invasive, of the physiological and mechanical processes. In this study, 3D numerical simulations of blood flow were run with the software ANSYS Fluent, using the blood as a non-Newtonian fluid. Through the simulations, the velocity and shear stress profiles were generated for three different types of CVCs with the intention of predicting potential geometries generators of cell lysis and platelet activation, the main consequences of mechanical injuries in the blood.
Keywords
central venous catheter, hemodialysis, Blood flow, Shear Stress
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