Three models of different stent designs implanted in a cerebral aneurysm, originating from the virtual intracranial stenting challenge, are meshed and the flow characteristics simulated using commercial computational fluid dynamics (CFD) software in order to investigate the effects of non-Newtonian viscosity and pulsatile flow. Conventional mass inflow and wall shear stress (WSS) output are used as a means of comparing the CFD simulations. In addition, a WSS distribution is presented, which clearly discriminates in favour of the stent design identified byother groups. It is concluded that non-Newtonian and pulsatile effects are important to include in order to avoid underestimating WSS, understand dynamic flow effects, and to discriminatemore effectively between stent designs.

Non-Newtonian and flow pulsatility effects in simulation models of a stented intracranial aneurysm / Cavazzuti, Marco; Atherton, M. A.; Collins, M. W.; Barozzi, Giovanni Sebastiano. - In: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART H, JOURNAL OF ENGINEERING IN MEDICINE. - ISSN 0954-4119. - STAMPA. - 225:6(2011), pp. 597-609. [10.1177/09544119JEIM894]

Non-Newtonian and flow pulsatility effects in simulation models of a stented intracranial aneurysm

CAVAZZUTI, Marco;BAROZZI, Giovanni Sebastiano
2011

Abstract

Three models of different stent designs implanted in a cerebral aneurysm, originating from the virtual intracranial stenting challenge, are meshed and the flow characteristics simulated using commercial computational fluid dynamics (CFD) software in order to investigate the effects of non-Newtonian viscosity and pulsatile flow. Conventional mass inflow and wall shear stress (WSS) output are used as a means of comparing the CFD simulations. In addition, a WSS distribution is presented, which clearly discriminates in favour of the stent design identified byother groups. It is concluded that non-Newtonian and pulsatile effects are important to include in order to avoid underestimating WSS, understand dynamic flow effects, and to discriminatemore effectively between stent designs.
2011
225
6
597
609
Non-Newtonian and flow pulsatility effects in simulation models of a stented intracranial aneurysm / Cavazzuti, Marco; Atherton, M. A.; Collins, M. W.; Barozzi, Giovanni Sebastiano. - In: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART H, JOURNAL OF ENGINEERING IN MEDICINE. - ISSN 0954-4119. - STAMPA. - 225:6(2011), pp. 597-609. [10.1177/09544119JEIM894]
Cavazzuti, Marco; Atherton, M. A.; Collins, M. W.; Barozzi, Giovanni Sebastiano
File in questo prodotto:
File Dimensione Formato  
2011_JEngngMed_Cavazzuti etal.pdf

Accesso riservato

Descrizione: Articolo principale
Tipologia: Versione pubblicata dall'editore
Dimensione 883.73 kB
Formato Adobe PDF
883.73 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/656439
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 14
social impact