CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Why won't the fluid flow past pressure outlet?

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

LinkBack Thread Tools Display Modes
Old   October 22, 2013, 11:42
Default Why won't the fluid flow past pressure outlet?
New Member
Aileen Magee
Join Date: Sep 2013
Posts: 24
Rep Power: 5
0906536m is on a distinguished road
Sponsored Links
Hello there,
I am currently trying to model the injection of CO2 into a saline aquifer where the injection pipe has a fracture, so that I can evaluate the migration of the leaked CO2. My model is basically a pipe, however I have added a very small protrusion which I can then assign boundary conditions to in order to model the fracture extends into a layer of porous sandstone. I have assigned BC's of velocity-inlet to the inlet of the injection pipe and then a pressure outlet to both the outlet of the pipe and the fracture. On running the simulation and looking at the results the actual flow through the pipe and around the fracture seem ok, but the flow doesn't continue through the fracture pressure outlet into the sandstone zone. Does anybody know how I can resolve this?
Attached Images
File Type: jpg FFF-1.1-3-00040.jpg (96.6 KB, 8 views)
0906536m is offline   Reply With Quote
Sponsored Links

Old   October 23, 2013, 13:02
Senior Member
Andrew Kokemoor
Join Date: Aug 2013
Posts: 122
Rep Power: 7
Kokemoor is on a distinguished road
If you want flow to continue from the pipe into the sandstone, you'll need an interior boundary condition, such as an interface (See Fluent User's Guide section 5.4). The outer edges of the sandstone will have pressure outlets or some other kind of exterior boundary condition instead.
Kokemoor is offline   Reply With Quote


Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Low Mixing time Problem Mavier CFX 5 April 29, 2013 00:00
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
pressure outlet (open channel flow) Willem Brantegem Main CFD Forum 0 April 3, 2007 09:39
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 06:13

Sponsored Links

All times are GMT -4. The time now is 23:34.