Database for Direct Numerical Simulation of Stenotic Flows



Reference

Varghese, S. S., Frankel, S. H., Fischer, P. F., 'Direct numerical simulation of steotic flows. Part 1. Steady flow', Journal of Fluid Mechanics, vol. 582, pp. 253 - 280

Varghese, S. S., Frankel, S. H., Fischer, P. F., 'Direct numerical simulation of steotic flows. Part 2. Pulsatile flow', Journal of Fluid Mechanics, vol. 582, pp. 281 - 318



Stenosis Geometry


Side and front views of the stenosis geometry (L = 2D), the solid line corresponding to the profile of the axisymmetric stenosis model and the dashed line to the eccentric stenosis model.
Steady Flow through the Axisymmetric Stenosis Model. Re = 500, 750 and 1000.



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x / D

Vorticity magnitude contours for Re = 750. Click on any of the x/D locations to see streamwise velocity and download data at that location.


Complete Dataset Download - 

Velocity (u, v, w): Re = 500, Re = 750, Re = 1000
(Note: use ui = 0.5 for normalization)
Steady Flow through the Eccentric Stenosis Model. Re = 1000.
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x / D


-3       -2       -1        0        1        2        3        4        5        6        7       8         9       10      11      12      13      14      15      16      17      18      19      20     21      22
x / D

Time-averaged vorticity magnitude contours. Click on any of the x/D locations to see streamwise velocity, rms and turbulent kinetic energy profiles and download data at that location.


Complete Dataset Download -  

Time-Averaged Velocity (u, v, w): x - z plane (y = 0.0), x - y plane (z = 0.0)

RMS Velocity (urms, vrms, wrms): x - z plane (y = 0.0), x - y plane (z = 0.0)

Turbulent Kinetic Energy (k): x - z plane (y = 0.0), x - y plane (z = 0.0)

(Note: use ui = 0.5 for normalization)



Pulsatile Flow through the Axisymmetric Stenosis Model. Mean Re = 600.



Axial velocity contours.



Vorticity magnitude contours.


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Pulsatile Flow through the Eccentric Stenosis Model. Mean Re = 600.


Instantaneous coherent structures identified by the lambda-2 criterion of Jeong and Hussain (JFM, 1995), colored by pressure.
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