CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent Multiphase

Fluent VOF-DEM Water Volume Conservation Issue

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 3, 2024, 00:40
Default Fluent VOF-DEM Water Volume Conservation Issue
New Member
Join Date: Apr 2020
Posts: 4
Rep Power: 6
DHSYNE is on a distinguished road
Hi Guys,

I've been studying Fluent-DEM coupling for a while. Currently, I'm simulating particles dropping into water cases. However, I found the volume of water in the system decreases after particles are dropped into the water.

In my VOF model, I set up 3 phases, gas, water and particle. So I will update the particle volume fraction to 3rd phase at each CFD time step using DEFINE_EXECUTE_AT_END. The animation is good, the water interface raises after particles drop in, but the total volume and mass of the water decreases.

I've tried the Eulerian model for this case, which is all good. The water mass remains consistent all the time.

My case set-up is consistent with this paper as I want to replicate their case.

Any idea would be great. Many thanks!

DHSYNE is offline   Reply With Quote


coupling, dem, multiphase, vof

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
[Other] mesh airfoil NACA0012 anand_30 OpenFOAM Meshing & Mesh Conversion 13 March 7, 2022 17:22
transient VOF water flow - how to measure water volume that pass through a surface? alpharays STAR-CCM+ 0 January 6, 2019 20:02
[blockMesh] error message with modeling a cube with a hold at the center hsingtzu OpenFOAM Meshing & Mesh Conversion 2 March 14, 2012 09:56
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11
uptodate water distribution network fredius,magige,tanzanian,(e.a) Main CFD Forum 0 January 27, 2002 07:10

All times are GMT -4. The time now is 22:22.