Bénard–von Kármán vortex street behind a cylinder translating in a fluid at rest
- Sébastien Delaux
- sh strouhal.sh
- Required files
- strouhal.gfs (view) (download)
strouhal.sh strouhal.gfv strouhal.ref moving.ref static.ref
- Running time
- 26 minutes 43 seconds
An example of 2D viscous flow around a simple solid boundary. A solid
cylinder is impulsively started at the right of a channel bounded by
solid walls with a slip boundary condition.
Adaptive refinement is used based on the vorticity.
After an initial growth phase, a classical Bénard–von Kárman
vortex street is formed.
|Figure 73: Vorticity field.|
|Figure 74: Evolution of the drag and lift coefficients
for a Reynolds number of 400.|
|Figure 75: Strouhal number versus Reynolds
number. Comparison between static (reference) and moving problem.|