Examples
of Data Visualization using Se.La.Vi.
Title : Unsteady
laminar flow of the wake behind a cylinder.
Flow calculations performed
by : Theodora
Pappou
Description :
The prediction of the flow field
behind a circular cylinder was archieved in an effort
to validate a new numerical method
for the solution of steady-unsteady incompressible
flow fields inside domains with
arbitry shaped and movable boundaries.
This numerical methodology is based
on the artificial compressibility concept when
it is applied to the Flux Vector
Splitting method (a numerical method for the solution
of compressible flows) Here, the
visualization procedure contribute in the attemp
for better description of vortex
dynamic phenomena in the wake (far and near)
of a circular cylinder for Re=1000.
It concerns the vorticity contours in the wake
behind a cylinder over one period
of the unsteady phenomenon.
Calculation conditions :
Re = 1000
'O' type grid 205x114
External radius of the flow domain
taken equal to 40 diameters of the cylinder
Dimensionless physical time step
0.0005
Dimensionless First grid line -
Cylinder distance 0.0007
Download
Video
zip file 165 KB includes avi file
, 500x378 ,
20 frames , 2 sec , original size
481 KB
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