Flow Field Characterization Inside an Arteriovenous Graft-to-Vein Anastomosis Under Pulsatile Flow Conditions

Abstract

The purpose of this study was to investigate the relationship between the distribution of turbulence intensity and the localization of stenoses inside the venous anastomosis of arteriovenous (A-V) grafts. Turbulent flow measurements were conducted inside an upscaled end-to-side graft model under pulsatile flow condition. The pulsatile flow waveforms had maximum, minimum and mean Reynolds numbers of 2500, 1200, 1800, respectively based on the graft diameter. The distribution of the velocity and turbulence intensity was measured at several locations in the plane of the bifurcation of the model. Turbulence intensity was found to be greatest downstream of the anastomosis.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412567

Entities

People

  • Francis Loth
  • Hisham Bassiouny
  • Nurullah Arslan

Organizations

  • Fatih University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Arteries
  • Cardiovascular Physiological Phenomena
  • Dialysis
  • Diameters
  • Energy Transfer
  • Engineering
  • Flow
  • Flow Fields
  • Flow Rate
  • Fluid Dynamics
  • Geometry
  • Industrial Engineering
  • Lasers
  • Measurement
  • Refractive Index
  • Reynolds Number
  • Turbulent Flow

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Trauma Surgery or Emergency Medicine.