Matadial Ojha, PhD. , C. Ross Ethier, PhD. #, K

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Presentation transcript:

Steady and pulsatile flow fields in an end-to-side arterial anastomosis model Matadial Ojha, PhD *, C.Ross Ethier, PhD *#, K.Wayne Johnston, MD, FRCS(C) *‡, Richard S.C. Cobbold, PhD * Journal of Vascular Surgery Volume 12, Issue 6, Pages 747-753 (December 1990) DOI: 10.1067/mva.1990.24365 Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 1 Flow visualization optical arrangement and definition of terminology: (a) X-Z plane. (b) Y-Z plane with flow from graft coming out of the figure. Journal of Vascular Surgery 1990 12, 747-753DOI: (10.1067/mva.1990.24365) Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 2 Steady flow fields at the indicated Reynolds numbers in (a) the x-z plane, and (b) the y-z plane. The normalized distance from the toe of the junction is specified by Z, and the arrows indicate specific flow structures as described in the text. Journal of Vascular Surgery 1990 12, 747-753DOI: (10.1067/mva.1990.24365) Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 3 Three-dimensional sketch of the pathline of the high inertia fluid seen under steady flow conditions at Re = 950 and 1300, as well as for unsteady flow at around peak flow: (a) side view, showing development of the double helix; (b) top view. Journal of Vascular Surgery 1990 12, 747-753DOI: (10.1067/mva.1990.24365) Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 4 Pulsatile flow fields at the indicated times in the flow cycle for (a) the x-z plane, and (b) the y-z plane. Journal of Vascular Surgery 1990 12, 747-753DOI: (10.1067/mva.1990.24365) Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 5 a, Flow waveform. b, Predicted wall shear stress in the graft section. Axial component of the wall shear stress measured at (c) Z = 0.6 and (d) Z = −0.9. Journal of Vascular Surgery 1990 12, 747-753DOI: (10.1067/mva.1990.24365) Copyright © 1990 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions