This example studies the turbulent fluid flow within a channel with a backwards-facing step.
This
example is based on previous case and the same geometry will be used. Some
modifications will be done to the boundary conditions of example
The Reynolds number is defined here as: Re = νmax H r / m, with the characteristic length of the problem, H, being the height of the step. Being vmax the maximum velocity value attained in this section.
The Reynolds number derives from the choice of the following parameters
H = vmax = 1.0 m/s r = 1 kg/m3 m = 7.14 10-6 kg/ms |
According to the previous equation we obtain
Re = 70.000 |
The best way to proceed from example 3 is to save this file with a different name.
Only small changes in the initial and boundary conditions fixed in previous example are required in order to run this problem. Next the necessary changes are described.
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