Hybrido Fluids Don't Act Like Standard Fluids

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Bardipper
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Location: Southern California

Hybrido Fluids Don't Act Like Standard Fluids

Post by Bardipper » Sun Sep 01, 2013 11:48 pm

I have a trough that feeds water into a container. When I use standard emitters, the fluid flows just fine. But when I use a Hybrido emitter, the fluids penetrate through the trough. I've tried different cell sizes on both the fluids and geometry, but they still penetrate. Some help please. Thanks.

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FlorianK
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Location: Cologne, Germany

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by FlorianK » Tue Sep 03, 2013 11:45 am

The reason why they behave differently is because the fluid motion is calculated using different algorithms. FLIP or SPH.

In order to solve you problem, you should be posting an image of your scene settings, domain cell size as well as the Volume settings for your interconnected object.

Bardipper
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Location: Southern California

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by Bardipper » Wed Sep 04, 2013 6:40 am

Attached is the setup.
Domain cell size = 0.3
In Scale Option dialog, Cell size scale = 1.0
Trough: Solid Inside
Glass: Solid Inside

The above produced the results shown in attached.

Then I assigned Shell to the Trough and Glass, and there was no more penetration. Why is this?
Thanks
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LuisMiguel
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Joined: Fri Jun 04, 2010 2:37 pm

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by LuisMiguel » Thu Sep 05, 2013 12:27 pm

Hey,

It can be due to the cell size value you have for the scene. Maybe the geometry is voxelizing with a huge cell size and the cells are not adjusted properly with the geometry. Could you send us the scene to check?

luisM.

Bardipper
Posts: 32
Joined: Sat Aug 03, 2013 8:48 pm
Location: Southern California

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by Bardipper » Thu Sep 05, 2013 7:35 pm

Yes, I can send it. With the gfc and bin files, it's 6GBs. How do I send it? I'll also have to send the sd files, won't I?

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Otuama
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Joined: Sun Jun 27, 2010 2:29 pm

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by Otuama » Thu Sep 05, 2013 9:10 pm

Don't bother sending the cache files.

send the scene and sd file. NL will run the sim there and advise you of any solutions.
Otuama - Vimeo
'Strength does not come from physical capacity. It comes from an indomitable will.' - Gandhi

CG_Nema
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Joined: Fri May 31, 2013 5:23 am

Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by CG_Nema » Fri Sep 06, 2013 9:00 am

In my experience, Shell type volumes cause leaking more than Solid types. Try adding a thickness to your geometry by extruding it a little, then set it to solid inside. This usually works for me. Sometimes changing the solver strictness to 1 helps with leaking as well.

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LuisMiguel
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Re: Hybrido Fluids Don't Act Like Standard Fluids

Post by LuisMiguel » Fri Sep 06, 2013 11:57 am

Hi,

Yeah, that problem is basically by the cell size parameter. Taking a look at the scene will be helpful.

luisM.

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