CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Setting Initial volume fraction for the DEM particles

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 25, 2014, 04:18
Default Setting Initial volume fraction for the DEM particles
  #1
New Member
 
Anoop Jangra
Join Date: Oct 2011
Location: India
Posts: 7
Rep Power: 14
anoopjangra is on a distinguished road
Hi,

I am simulating an cylindrical shape mixer for lagrangian DEM particles. For this I need to fill the cylinder initially with particles. I want to know how to fill cylinder with DEM particles initially.
anoopjangra is offline   Reply With Quote

Old   August 25, 2014, 06:01
Default
  #2
Senior Member
 
Ping
Join Date: Mar 2009
Posts: 556
Rep Power: 20
ping is on a distinguished road
you just inject the particles and let them fall into place

if you read the help you will learn that some injectors are better = quicker for filling than others
ping is offline   Reply With Quote

Old   August 25, 2014, 06:12
Default
  #3
New Member
 
Anoop Jangra
Join Date: Oct 2011
Location: India
Posts: 7
Rep Power: 14
anoopjangra is on a distinguished road
Hi ping,

I am already using lattice injector hope which is the quickest, but still it takes a long time to fill it. And also it take longer to complete time-step as no of particles increases. I want to know if we can fill initially fill a portion of the cylinder with particles.
anoopjangra is offline   Reply With Quote

Old   August 25, 2014, 06:16
Default
  #4
Senior Member
 
Ping
Join Date: Mar 2009
Posts: 556
Rep Power: 20
ping is on a distinguished road
as i said read the help and you will learn about other injection methods eg a part injector

there are also lots of tips about how to speed up runs by adjusting particle properties while filling

steve will also help you with lots of tips
ping is offline   Reply With Quote

Old   March 26, 2024, 06:59
Default
  #5
New Member
 
Samkelo
Join Date: Sep 2023
Posts: 1
Rep Power: 0
Samkelo is on a distinguished road
Quote:
Originally Posted by anoopjangra View Post
Hi,

I am simulating an cylindrical shape mixer for lagrangian DEM particles. For this I need to fill the cylinder initially with particles. I want to know how to fill cylinder with DEM particles initially.
Hi,

Did you finally figure it out? Cause I am struggling with the same thing. Your guidance could be helpful. Thank you.
Samkelo is offline   Reply With Quote

Reply

Tags
dem, lagrangian particle

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
High Courant Number @ icoFoam Artex85 OpenFOAM Running, Solving & CFD 11 February 16, 2017 13:40
Unstabil Simulation with chtMultiRegionFoam mbay101 OpenFOAM Running, Solving & CFD 13 December 28, 2013 13:12
pimpleFoam: turbulence->correct(); is not executed when using residualControl hfs OpenFOAM Running, Solving & CFD 3 October 29, 2013 08:35
How to write k and epsilon before the abnormal end xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 15:33
dynamic Mesh is faster than MRF???? sharonyue OpenFOAM Running, Solving & CFD 14 August 26, 2013 07:47


All times are GMT -4. The time now is 18:35.