Numerical and experimental analysis of the transitional flow across a real stenosis
- 312 Downloads
In this paper, we present a numerical study of the pulsatile transitional flow crossing a severe real stenosis located right in front of the bifurcation between the right subclavian and right common carotid arteries. The simulation allows one to determine relevant features of this subject-specific flow, such as the pressure waves in the right subclavian and right common carotid arteries. We explain the subclavian steal syndrome suffered by the patient in terms of the drastic pressure drop in the right subclavian artery. This pressure drop is caused by both the diverging part of the analyzed stenosis and the reverse flow in the bifurcation induced by another stenosis in the right internal carotid artery.
KeywordsCFD Stenosis Subclavian steal syndrome
Partial support from the Junta de Extremadura through Grant No. GR15014 (partially financed by FEDER funds) is gratefully acknowledged.
Compliance with ethical standards
Conflicts of interest
The authors declare that they have no conflict of interest.
- Ansys (2015) Ansys fluent 16.2. user’s guide. Ansys, CanonsburgGoogle Scholar
- Gallo D, Santis GD, Negri F, Tresoldi D, Ponzini R, Massai D, Deriu MA, Segers P, Verhegghe B, Rizzo G, Morbiducci U (2012) On the use of in vivo measured flow rates as boundary conditions for image-based hemodynamic models of the human aorta: Implications for indicators of abnormal flow. Ann Biomed Eng 40:729–741CrossRefGoogle Scholar
- Jahangiri M, Saghafian M, Sadeghi MR (2015) Numerical study of trubulent pulsatile blood flow through stensosed artery using fluid-solid interaction. Comput Math Methods Med 2015:515613Google Scholar
- Varghese SS, Frankel SH, Fischer PF (2007a) Direct numerical simulation of stenotic flows. Part 1. Steady flow. J Fluid Mech 582:253Google Scholar
- Versteeg HK, Malalasekera W (2007) An introduction to computational fluid dynamics. Pearson Education Limited, LondonGoogle Scholar
- Wilcox DC (2006) Turbulence modeling for CFD. DCW Industries, FlintridgeGoogle Scholar