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5.2  PASS: Mass conservation

Author
Stéphane Popinet
Command
sh axi.sh
Version
1.3.0
Required files
axiadvection.gfs (view) (download)
axi.sh vectors.gfv vof.gfv
Running time
6 seconds

A standard and a VOF tracer are advected by an axisymmetric flow. The initial interface is a torus which is then advected by the flow illustrated in Figure 76. As the torus is flattened against the right-hand-side wall, its cross-sectional surface area decreases but the volume should remain constant. This is indeed the case to within 0.04% for the VOF tracer and 1.5× 10−5% for the standard tracer.


Figure 76: VOF interface (red) and velocity field (green).

5.2.1  PASS: Mass conservation with solid boundary

Author
Stéphane Popinet
Command
sh axi.sh
Version
1.3.0
Required files
solid.gfs (view) (download)
axi.sh
Running time
13 seconds

A similar test but for tracers advected around a solid sphere.


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