CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Eulerian-Lagrangian method for large partilces relative to mesh size

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 13, 2024, 15:57
Default Eulerian-Lagrangian method for large partilces relative to mesh size
New Member
Join Date: Oct 2014
Posts: 23
Rep Power: 11
s.amirzadeh is on a distinguished road
Hello everyone,

I am simulating a large, bubbly, multiphase flow that consist a large amount of bubbles having a size distribution of 0.5 mm to 7 mm. If I want to use VOF method, I need very fine mesh size to be able to capture small size bubbles, but since my geometry is very large, that doesn't let my simulation finish in a reasonable time.

Therefore, I want to use an Eulerian-Lagrangian solver like DPMFoam or MPPICFoam, so that I don't have to use unnecessary fine mesh. I used MPPICFoam for that, but the problem is I get unrealistic velocity values at where particles are located at. I read here DPMFoam vs. MPPICFoam and general kinematicCloud questions that the limitation of MPPICFoam is that the partilce size must be 3 or more times smaller than mesh elements. Ome of my bubbles have the same size or 2 times the size of each element. I was wondering if there is another method or solver that let me inject large particles relative to the mesh element size.
s.amirzadeh is offline   Reply With Quote


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
flow over cylinder in openFoam saeed jamshidi OpenFOAM Pre-Processing 3 August 11, 2023 15:16
foam-extend-4.1 release hjasak OpenFOAM Announcements from Other Sources 19 July 16, 2021 05:02
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 05:36
engrid -> save as .stl with boundarie codes Zymon enGrid 31 August 29, 2011 13:40
Icem cfd Cartesian mesh method size proplem mztcu CFX 7 May 26, 2009 23:43

All times are GMT -4. The time now is 12:49.