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


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

LinkBack Thread Tools Search this Thread Display Modes
Old   December 7, 2021, 13:31
Question liquid-liquid-separation-boundary-conditions-reversed-flow
New Member
Join Date: Dec 2021
Posts: 20
Rep Power: 4
maba is on a distinguished road
Hi, Every one.
I am simulating oil-water emulsion separation process with Euler-Euler multiphase model and population balance method. The volume fraction of water is about 5-10 percent. During the process water droplets coalesce and form larger droplet, and gravity makes the droplets to settle. The computational domain is attached. The flow is from bottom to top. The mixture enters the domain from inlet and at the bottom, water exits with volume fraction of one. The volume fraction at top is not determined. Because it depends on how many droplet reach the desired size to settle. Also, the mass flow at the two outlets depends on amount of droplet coalescence and is not specified. I used the pressure outlet and outflow, but the reversed flow occurs at both outlets. How should I specify the boundary conditions(the outlets) to simulate the process accurately?
Attached Images
File Type: jpg Capture.JPG (19.3 KB, 4 views)
maba is offline   Reply With Quote


euler multiphase, liquid liquid separation

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
3D Windturbine simulation in SU2 k.vimalakanthan SU2 15 October 12, 2023 05:53
Question about adaptive timestepping Guille1811 CFX 25 November 12, 2017 17:38
non reflective boundary conditions for incompresible flow Pascal_doran OpenFOAM Programming & Development 16 August 25, 2015 05:35
Difficulty In Setting Boundary Conditions Moinul Haque CFX 4 November 25, 2014 17:30
Water subcooled boiling Attesz CFX 7 January 5, 2013 03:32

All times are GMT -4. The time now is 22:11.