Numerical simulation of blood flow in a curved textile vascular prosthesis

Saber Ben Abdessalem, B. Durand, S. Akesbi, N. Chakfe, J. G. Kretz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Woven and knitted cardiovascular prostheses are tubular structures made of polyester filaments. They present particular mechanical properties linked to the wavy form of their walls, allowing them to be used in curved configurations. Pulsatile blood flows have been studied in bent textile prosthesis. The results obtained showed velocity peaks involving high-shear stress zones and turbulence phenomenon inside the graft. The flow velocity distribution near a prosthetic surface is strongly influenced by the crimping morphology. A local flow analysis is imperative in understanding pathologies implying hemodynamic factors and in optimizing the prosthesis design.

Original languageEnglish (US)
Pages (from-to)117-122
Number of pages6
JournalJournal of the Textile Institute
Volume96
Issue number2
DOIs
StatePublished - 2005

Keywords

  • Blood flow
  • Crimping
  • Curved graft
  • Finite elements
  • Numerical simulation
  • Shear stress
  • Textile vascular prosthesis

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Agricultural and Biological Sciences(all)
  • Polymers and Plastics
  • Industrial and Manufacturing Engineering

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