CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

particleFoam and steady state

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 1, 2021, 14:55
Default particleFoam and steady state
  #1
New Member
 
Yves Robert
Join Date: May 2019
Posts: 4
Rep Power: 5
yv3s95 is on a distinguished road
Hello,

I am working on a project involving spherical particles inserted from the bottom, pushed up by buoyancy and fluid flow, in a cylinder.

To fill the cylinder, I am using particleFoam with a patch injection at the bottom, the top and the side being considered as walls. The cylinder contains tens to hundreds of thousands of spheres.

Then my goal is to perform a steady state circulation, where particles are extracted and injected at a defined rate.

My first intuition was to:
1) "open" the top using a patch instead of a wall
2) run the simulation without injection and see the "natural extraction" rate
3) apply an insertion rate equal to the extraction rate found
However, this method does not work, as when we inject particles, the extraction rate varies as well (I guess that spheres are pushed up).



Therefore, I would like to know:
- How can I dynamically control the insertion rate based on the extraction rate?
- Is there a way to apply an extraction rate with a trap like what StarCCM+ would do, instead of opening the top? In this case it would be much easier for me.

Thank you!
yv3s95 is offline   Reply With Quote

Reply

Tags
circulation, dem with openfoam, particlefoam, steady state, steady state icofoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 07:27.