Learning Forum

[Julen]

Hello everyone,

I saw somebody evaluating how the particles mix with each other in an extruder. Is something like this possile in Ansys Polyflow? The sim I am running is using the polyflow solver.

I am trying to do something like this. (This was created with Openfoam)

Thanks in advance!

[Rob]

If it's just particle flow and they're not being melted I'd look at Ansys Rocky (DEM code). That will couple to Fluent if the carrier fluid adds significant effects to the system.  

[Julen]

I don't really unterstand what you mean with your answer. Could you try to describe it a bit simpler? I am no expert when it comes to Ansys.

Some additional Information, hope it helps:

The solver I am using is the Polyflow solver and I am simulating an already melted polymerflow. I just impose a certain kg/hour inflow. I wanted to know if with those settings I am using I can somehow model the way particles would behave if I were to color them, like in the example I sent earlier.

Thanks again

[Rob]

OK, I don't use Polyflow.

If you want particles in a screw feed than I'd use Rocky, possibly with Fluent. If I want to model a polymer extrusion I'd (ask someone else to) use Polyflow. 

[Julen]

Hello Rob, thanks for your help nonetheless. Do you know how I would ask someone else that knows polyflow? Do you have employees specifically for that?

 

[Rob]

We do, I'll nudge the "manager" team to find someone. 

[Julen]

Any update on the nudging of the manager team 😅

[Benjamin Ducoeur]

 

You can track particle using Polyflow using the module called Polystat.

More information can be found here:

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v232/en/poly_ps/poly_ps.html

There are several examples about the use of this module in the example manual:

Example 50: The Rectangular Cavity

Example 51: Coextrusion of Polymers in a Square Channel

Example 52: Flat Die

Example 46: Periodic Flow Through a Kenics Mixer

Example 37: Mixer 2-D

Example 65: Adaptive Meshing for Moving Parts; Mixer 2-D

Example 91: Dispersion

Example 116: Distributive Mixing Analysis in the Mixer GK7N

I would focus on example 46 as it is like your application.

In case you do not know, here is the link to find and use the Polyflow Example manual:

https://support.ansys.com/KnowledgeResources/Solutions?solutionIdentifier=sol2064053&productName=ANSYS+Polyflow&productFamily=Fluid%20Dynamics