The fifth example of this tutorial analyses a case of two-dimensional flow passing a cylinder in the low Reynolds range.
We choose a Reynolds number of Re = 100, for which we expect a vortex street in the wake of the cylinder (the well known von Kármán vortex street).
As in the two previous examples the geometry consists of a box that represents the control volume, which contains the body to be studied in this case the circular cylinder.
- Flow passing a cylinder
- Viscous, turbulent case
- Reynolds number of 100
The Reynolds number is calculated as in the cavity flow example. In this case we chose for the characteristic length of the problem, L, the diameter D of the cylinder.
The example's parameters are
- D=1 (m)
- v=1 (m/s)
- r=1 (kg/m3)
- h=1 10-2 (kg/m.s)
This gives
Re = 100
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