Banca de DEFESA: ANGELICA ALINE CAMPELO GOMES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ANGELICA ALINE CAMPELO GOMES
DATE: 31/08/2026
TIME: 14:30
LOCAL: Plataforma Google Meet
TITLE:

ANALYSIS OF DRAG REDUCTION USING  POLYETHYLENE OXIDE(PEO) IN AN IDEALIZED ARTERIOVENOUS FISTULA MODEL

KEY WORDS:

Arteriovenous Fistula; Drag Reduction; Polyethylene Oxide; Aloe Vera

PAGES: 56
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Têxteis
SUMMARY:

The arteriovenous fistula (AVF) is a safe means of vascular access for patients who require hemodialysis treatment. It is created surgically by connecting a artery to an vein. This procedure, however, alters normal blood flow, causing disturbances that can lead to future complications. Some complications associated with AVF stem from recirculation zones, pressure loss, decreased pressure, abnormal shear stress levels, and the formation of stenoses. Such mechanical disturbances are direct causes of reduced flow in the AVF, as they increase drag force within the vessel, which is detrimental to the procedure. This study experimentally investigates the application of high-molecular-weight polyethylene oxide (PEO) (4,000,000 Da) as a drag-reducing polymer. The objective is to analyze drag reduction in an ideal AVF model using a synthetic polymer. The methodology consisted of fabricating an FAV model via 3D printing and conducting tests on a hydrodynamic test bench to measure parameters such as pressure, flow rate, Reynolds number, and pressure drop. The results showed a reduction in drag at all concentrations studied, which were 30, 50, 100, and 150 ppm. The greatest reduction in drag corresponded to the 100 ppm concentration, with a 24.53% reduction in the range of greatest interest between the FAV inlet and outlet.

COMMITTEE MEMBERS:
Presidente - 2654020 - KLEIBER LIMA DE BESSA
Interno - 2550377 - THERCIO HENRIQUE DE CARVALHO COSTA
Externo à Instituição - JAYME PINTO ORTIZ - USP