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

Boundary condtions difference between fluid and slurry

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 17, 2023, 04:28
Default Boundary condtions difference between fluid and slurry
New Member
Join Date: Sep 2022
Posts: 16
Rep Power: 3
Turhan is on a distinguished road
Hi all,

I have a semi submerged pipe inside water. It has two outlets, one is inside the water and has hydrostatic pressure and the other one is outside the water and has atmospheric pressure. I calculated these values and filled them in as fixedValues in the boundary conditions.

When simulating this as pure fluid I have no issue and the simulation looks correct.
However, when I add particles through DPMFoam the velocity seems to have jumps, which is caused by the pressure having big jumps in its value.

I was wondering what effects particles add (such as higher density, additional friction losses, etc) that I need to take into consideration when determining the boundary conditions. And why is my simulation not correct anymore? The hydrostatic pressure outside the pipe does not change after all, so should I really be changing the boundary condition?
Turhan is offline   Reply With Quote


dpmfoam, lagrange, lagrangian, pressure boundaries, slurry flow

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
Pipe Annulus Flow of slurry: solids (cuttings) with power law Non-Newtonian fluid foued.badrouchi FLUENT 0 August 4, 2019 17:33
Highly viscous (500 Pa.s) fluid flow ahmadijaz Fluent Multiphase 2 June 5, 2019 08:52

All times are GMT -4. The time now is 10:33.