liquid simulation in animated mesh

FORUMS FORUMS General Help liquid simulation in animated mesh

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    • #11914

      L G
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      I am making a fluid simulation where at the end the liquid had to fill up a mesh of a female body from inside – so I would have a liquid female shape. It was also rigged and animated, so would also had to move as result.
      Yet I have several points where I failed:
      – the liquid at some parts go over the borders of the mesh
      – the liquid does not fill smoothly the mesh following the shape
      – the liquid stops at the knees and the neck
      – the liquid does not float to fill up but has an everage shape and lingers in one place.

      The domain is quite simple settings, the inflow has -15.000 Z set and the mesh is an obstacle with volume choice of setting with a normal 1 value.
      I also tried several settings around but the result is just worth – this became the most what I wished.

      So any help would be much appreciated.
      Thanks in advance

      I have a sample uploaded to YouTube.
      https://youtu.be/zyjB1o2JS0U

    • #11915

      Stephen
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      the video i find hard to know what is happening, very short. Can you post the blend file?

      Steve

    • #11917

      L G
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      Hi Steve!
      Thanks for your response.
      Here I attach the blender file.
      My aim is to produce some similar experiment as the liquid guy in terminator3

    • #11918

      L G
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      I dont see the attachment uploaded so I share a link on dropbox
      https://www.dropbox.com/s/qoza17gt55hr2jx/rigged_fluid.blend?dl=0

    • #11922

      admin
      Keymaster
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      @ L G, yeah if you’ll notice over to the right when posting, there is a 5mb file size limit when uploading to the site. That’s why your 38 MB file wouldn’t show up on the site.

      I’ve uploaded an image where I was playing around with your file. I increased the final resolution of the domain to 200 but as you can see, even then that’s not enough. To fill in all the tiny spaces of the female model mesh, you’ll probably need to bake at an even higher resolution (which of course will take longer). Next thing going on, you have your end scene animation set to 1 second (or 24 frames long) while the domain bake settings is set to bake over 4 seconds. You’ll need to set your actual animation length of your scene to be at least as long as you have the domain bake set up.

      To get better results you need to shrink your domain cube down to as close to the size of the actual model as possible. Also, rather than just subdividing the domain cube directly (which creates uneven face size distribution of the domain cube) use edge loops to cut vertically, horizontally and along the depth of the cube so you can get more even face distribution on your domain box, then after that, you may wish to actually further subdivide one or two more times the entire domain selection. In short, it’s going to take a lot of resolution and a lot of bake time to make this work I think. Unless anyone else has some better ideas.

    • #11924

      L G
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      Thanks for the instructions. I could step further with this explanation.
      Is that possible, when I start to animate the mesh body that the liquid will deform together with the motion and follow the shape of the body?

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