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Spout pouches

Altair Forum User

Hi,

I want to simulate the spout pouch in radioss.

I don't know how to model it and how to seal its side as shown in attachment.

What kind of MAT law used for pouches?

In this want to check the pressure at which the product will squeeze out of the pouch.

Please suggest and if any tutorial regarding pouch simulation, share it.

Thank You.

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Altair Forum User

Hi Thushar,

I found a similar analysis (Simulating the squirting of toothpaste from a tube upon squeezing) done in Altair AcuSolve. AcuSolve provides powerful fluid flow analysis.

Please click the link below to see the animation of the same:

http://www.altairhyperworks.com/html/en-us/rl/ACUSIM/ACUSIM-ImageGallery/toothpaste.gif?_ga=1.43363109.1608161500.1468655325

Meanwhile I'll update you if I get any similar kind of analysis in RADIOSS.

Altair Forum User

Thanks very much.

I am trying the same in radioss.

I have set up the model for same, but unable to seal its sides. Normally these sides are sealed by heating to a certain temperature and application of pressure.

So suggest me to how to seal these sides??

Altair Forum User

Hi,

Please check this forum.

Meanwhile I will try to collect some information on your requirement.

Altair Forum User

Hi George,

Can you please share the deck file of 'Simulating the squirting of toothpaste from a tube upon squeezing'?

Thank You.

gopal_rathore

Hi,

Are you going for FSI (Fluid structure interaction) type of simulation for this, as this involves a lubricant (fluid ) and the packet as a structure.

Altair Forum User

Hi,

I am trying to solve same with FSI.

I am new to Acusolve and trying to set up the same.

Do have any tutorial or deck file regarding squeezing of toothpaste tube?

If you have it share with me.

Thanks...

gopal_rathore

Hi,

I was thinking that same could also be done using hypermesh and radioss as solver . An example of fuel tank sloshing is given in radioss help. Where modelling of fuel and tank is explained with different materials and properties for each.

In your case, we have two phases i.e packet as sheel mesh fabric or plastic material and the lubricant as liquid material. For boundary condition if a pressure condition can be defined inside the packet(increasing pressure with time) and atmosphere at the outlet, the lubricant motion can be depicted.

I do not know whether this will work or not, but just felt this as one of the methodology apart from CFD simulation technique for it.

Altair Forum User

Hi Tushar,

I have requested for the same deck (squeezing of toothpaste) and I'll update you the progress very soon.

Altair Forum User

Hi,

I was thinking that same could also be done using hypermesh and radioss as solver . An example of fuel tank sloshing is given in radioss help. Where modelling of fuel and tank is explained with different materials and properties for each.

In your case, we have two phases i.e packet as sheel mesh fabric or plastic material and the lubricant as liquid material. For boundary condition if a pressure condition can be defined inside the packet(increasing pressure with time) and atmosphere at the outlet, the lubricant motion can be depicted.

I do not know whether this will work or not, but just felt this as one of the methodology apart from CFD simulation technique for it.

Thanks very much will check the same in help...

Altair Forum User

Hi Tushar,

I have requested for the same deck (squeezing of toothpaste) and I'll update you the progress very soon.

Ok....Thanks very much.

gopal_rathore

Hi Tushar,

Any updates on your model, I also want to know how to solve such problems.

Altair Forum User

Hi,

Initially, I tried this problem in radioss using SPH particles but unable to predict the results and behavior.

Now trying the same model with acusolve.

Altair Forum User

Hi Thushar,

Please try similar kinds of simulation with Acusolve. If you find any difficulties please post your queries so that our Acusolve experts will guide you.