CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent Multiphase

POPULATION BALANCE MODELING (PBM) in Steady State

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 18, 2015, 20:09
Question POPULATION BALANCE MODELING (PBM) in Steady State
  #1
New Member
 
Kalli
Join Date: Jul 2014
Posts: 9
Rep Power: 8
osha is on a distinguished road
I am simulating separation of 2 different phases of fluid. I am also modelling the coalescence and breakup of bubbles using PBM.

Coalescence and breakup are inherently unsteady phenomenon and I was looking at PBM equations to make sense of coalescence and breakup when treated as steady state.

Most of my simulations in steady state eulerian eulerian multiphase problem with discrete PBM model end up with divergence. But I have been able to stablize the simulation for time being by playing with relaxation factors. The residuals and fluctuations indicates that I am no where close to convergence.

However, I am seeking your opinion and guidance to understand if such multiphase problems with PBM can be treated as steady state?

If yes, how does the results obtained, physically make sense?

Thank you.
osha is offline   Reply With Quote

Reply

Tags
euler-euler, multiphase, pbm

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
Steady state solution as an initial condition for a transient problem adnanakhtar FLUENT 7 November 25, 2016 06:16
Steady State solution ajinkya1 SU2 2 November 26, 2014 05:22
Constant velocity of the material Sas CFX 15 July 13, 2010 09:56
regarding steady state discrete phase calculations hajszan_gyula FLUENT 1 February 28, 2006 02:32
About the difference between steady and unsteady problems Lisa Main CFD Forum 11 July 5, 2000 15:37


All times are GMT -4. The time now is 03:47.