bottle falling

[ghiom3d]

Hello,
I have 2 questions about this sim.
First one, why the tendril are disapear like that ? aren't they supposed to turn to drop instead of disapearing ?
Second one, i fill the bottle with a mesh wich have phoenix paramters initial fill and non solid. It's turned to non renderable to. but we can see the limit of the surface of this mesh in the sim . Why the liquide draw this sort of water level ?

https://vimeo.com/225085636/a502bd2455

[ghiom3d]

<iframe src="https://player.vimeo.com/video/225085636" width="1000" height="563" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
<p><a href="https://vimeo.com/225085636">test_01</a> from <a href="https://vimeo.com/ghiom3d">Guillaume Gaillard = GHiOM =</a> on <a href="https://vimeo.com">Vimeo</a>.</p>

[georgi.zhekov]

Hello,

Check if your mesh doesn't have any issues - overlapping faces, wrong vertices, etc. this could make some of the liquid to disappear.

I don't understand the second question. What is wrong with the level of the water? You want it to stay like the bottle is full just before hitting the ground?

[ghiom3d]

Thank you Georgi,

MEsh is ok , well modeled.
tendrils are turning to drop i think. but it's cause something wrong like if water dispearing.

the second point is , when you look closely, you see where is the level of initial fill water. In real, we cannont see this after water move. but it seems to be visible along the whole animation.

[Ivaylo Katev]

the initial level is "frozen" in the geometry, you have to cut it off using the settings of the mesher
about the disappearing tendrils - can it be just the grid walls?

[ghiom3d]

Hello Ivaylo,

So, i need to uncap the mesh at the top ! sound logical, thank you
abouty tendrils ... my bad !! I setup adaptative grid, but i have checked maximum expansion .. so it's not expand enough...


Any tips to make this sort of liquid sim more natural ?
I want to make a beautifull slow motion like we can do with houdini with his surface tension

[Guest]

Hi,

there's no information about your current scene settings, so I can suggest a bigger resolution, set a droplet breakup to 0.5 for more droplets, remove the viscosity if there's any and maybe more/less SPF (depends on the fluid dynamics). Try with more or less surface tension. Something like this. Try with different settings until you get the desired look. There's no exact formula for this

Cheers!

[ghiom3d]

Hi,

there's no information about your current scene settings, so I can suggest a bigger resolution, set a droplet breakup to 0.5 for more droplets, remove the viscosity if there's any and maybe more/less SPF (depends on the fluid dynamics). Try with more or less surface tension. Something like this. Try with different settings until you get the desired look. There's no exact formula for this

Cheers!

Thanks you George,

That's the way i do it.
No viscosity, surface tension around 0.25 and droplet breackup around 0.5.
SPF is at 1 because time scale is at 0.1 and i read there is a relation between this 2 param.
resolution is quite important right now, something like half a milimeter.
I lower a little bit the gravity to let the fluide flying a little bit, it's help to make what i want .

But i can have the same quality of the tendrils/drop/surface tension of i'm usual to see in houdini .
Water seems always to thick.

So i try with render> mesh smotthing and particles size but it's kill details.

[Guest]

A half millimeter is the cell's size but how many cells are there in total? Try simulation with 10 or more SPF (it would make the liquid smoother).

[ghiom3d]

A half millimeter is the cell's size but how many cells are there in total? Try simulation with 10 or more SPF (it would make the liquid smoother).

Total Cells = 16 988 400
I will increase to 33 159 750 and add 10 SPF to see