Navigate: ← Test case channel 2D
In this example, we will investigate the Poiseuille flow in a plain 2D channel using the recursive regularized bgk (rrBGK) collision scheme with a fourth order regularization.
This collision scheme is called as below in the identify table. relaxation = 'rr_bgk'
This is a non-dissipative scheme.
A detailed description of test case can be found in the parent directory Description of test case channel 2D.
Here are the results from the simulation. To create them, double the number of elements in height (nHeight=32) in seeder.lua.
Velocity along the height of the channel:
Pressure across the length of the channel:
Wall shear stress along the height of the channel:
To create these plots, run python plot_track.py to create the plots. Before running the plot script, open 'plot_track.py' and update path to Gleaner script in 'glrPath'. Download Gleaner script using hg clone https://geb.sts.nt.uni-siegen.de/hg/gleaner