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8.1  PASS: Translation of an hexagon in a uniform flow

Sébastien Delaux
sh hexagon.gfs
Required files
hexagon.gfs (view) (download) hexagon.gts hexagon.gfv
Running time
20 seconds

An hexagonal solid object translates uniformly in a fluid moving at the same speed (U = 1). There is no diffusion.

The conservation properties of the scheme can be checked by filling the simulation domain with tracer and computing the total amount at each time step.

Figure 71: Error in the horizontal component of the velocity field. Dark blue is zero, dark red 0.1.

Figure 72: Evolution of the global RMS error on the velocity field.

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