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Flow detachment point

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Old   February 28, 2017, 09:57
Default Flow detachment point
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Enrico Bezzi
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Hello,

I'm simulating an axisymmetric flow of water coming from a central pipe then free flowing down a circular plate (see picture 'geometry').

I ran the same case with two values of flow rate (15 l/min and 70 l/min). The resulting fraction of water is shown in pictures 'water_15l' and 'water_70l'.

Is the behaviour correct at the end of the plate? For 70 l/min water goes even upwards before detaching...

Solver is interFoam, gravity is present (though you wouldn't tell from the results...) and surface tension sigma for water is set at 0.07 N/m.

So is it correct that water detaches so late at the end of the plate or am I missing something in the model setup?


Thank you
Attached Images
File Type: jpg geometry.jpg (104.8 KB, 9 views)
File Type: jpg water_15l.jpg (45.0 KB, 6 views)
File Type: jpg water_70l.jpg (50.6 KB, 6 views)
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