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

Periodic Multiphase with Different BC for Phases

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 26, 2019, 09:50
Default Periodic Multiphase with Different BC for Phases
  #1
New Member
 
Luiz Oliveira
Join Date: Aug 2018
Location: Napoli, Italy
Posts: 24
Rep Power: 7
Luiz is on a distinguished road
Does anyone know if it is possible to set an periodic boundary condition for one phase and for the other set an pressure outlet for example?
I am trying to extract the time-averaged flow of water and at the same time extract an residence-time distributions curve from a certain region of the domain. The problem is that by solving exclusively with a periodic bc I would be re-injecting my tracer that should be advected out.
Luiz is offline   Reply With Quote

Old   March 28, 2019, 17:40
Default
  #2
New Member
 
Luiz Oliveira
Join Date: Aug 2018
Location: Napoli, Italy
Posts: 24
Rep Power: 7
Luiz is on a distinguished road
I managed to keep the periodic condition without allowing any tracer to come back by simply setting an automatic command each iteration. I would set the initial portion of my channel as a marked region and maintain its concentration as zero.
Code:
adapt/mark-inout-hexahedron [Inside] [Mouse Clicks] [x0] [x1] [y0] [y1] [z0] [z1] #marks zones which you can patch
solve/patch [domain] [cells] [region] [variable] [value] #patch zones with tracer concentration
solve/execute-commands/add-edit [name] [frequency] ["iteration"/"time-step"] ["command"] #adds an automated command to clear the inlet or outlet
Luiz is offline   Reply With Quote

Reply

Tags
multiphase flow tracer, periodic bc, rtd

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
fluent translationally periodic boundary can not be used for multiphase modeling zhihuawan FLUENT 0 January 18, 2018 01:08
Multiphase flow with Periodic Boundary Condition luludonotcry Fluent Multiphase 1 March 16, 2016 05:51
HELP! Periodic Problem foxer FLUENT 1 June 27, 2012 08:00
[ICEM] how to define periodic in icem ? mingersai ANSYS Meshing & Geometry 1 February 3, 2012 17:46
periodic boundary conditions in multiphase model swarnajay FLUENT 1 July 24, 2009 11:04


All times are GMT -4. The time now is 01:09.