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Every time I try to hold water with a obstacle, it leaks out. Here is one example I have made.

Water leaking through bowl

The shape has no holes, and the water is partially contained but slowly leaks out. This has occurred every time I have tried this. What could the cause be?

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4 Answers 4

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Setting the obstacle's volume initialisation to shell seems to have fixed it

enter image description here

I have no idea why this works if anyone knows why please add it to the comments.

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    $\begingroup$ The other solution would be to make the walls of your obstacle thicker. If you need to render with thinner walls, then have two meshes. Simulate with the thick-walled one and render with the thin walls. $\endgroup$
    – Fweeb
    Dec 16, 2013 at 14:02
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    $\begingroup$ Is it possible the normals on your obstacle were messed up? $\endgroup$
    – gandalf3
    Dec 16, 2013 at 23:13
  • $\begingroup$ @Fweeb the walls of the obstacle where prity thick, changing the thickness didn't have any effect. $\endgroup$
    – Qwertie
    Jan 16, 2014 at 9:08
  • $\begingroup$ @qwertie They don't appear to be particularly thick in your screenshot. Also, sometimes it helps to apply any Object mode scaling (Ctrl+A) on obstacles before you simulate. $\endgroup$
    – Fweeb
    Jan 16, 2014 at 13:59
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For me it helped when I applied Surface Thickness to the obstacle.

enter image description here

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Try to apply modifiers on your obstacle, especially Solidify. Fluid seems to leak when the obstacle's geometry has to be computed on-the-fly.

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I tried running water through a pipe and I changed the time scale to lower and the axis direction to a littler lower and it seems to flow perfectly no leakage but still maintaining a good amount of water flow

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