CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Wall between porous zones

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

LinkBack Thread Tools Display Modes
Old   April 15, 2013, 00:44
Default Wall between porous zones
New Member
Join Date: Mar 2012
Posts: 16
Rep Power: 5
roupcik is on a distinguished road
Hi CFD users! I have one problem. I simulate (in Fluent 14.5 version) the flow of water through the row of paralel tubes. Tubes are simulated as porous zones with different power (source terms) and every tube is divided to 4 parts (down to up). I defined walls between tubes - with no heat flux, so the boundary condition is isotermic. Walls are not divided to 4 parts as tubes. My problem is following: there should be isotermic condition along the whole wall and there is the wall, but in temperature or velocity contours, it seems as expansion of flow ("bubble" of different temperature and velocity) but only in small areas in points where two porous parts of tube touch to each other. I dont know, if there is some mistake in setting of porous zone placed next to other porous zone, or if i have to divide the wall to 4 parts in a same case as the tube is divided, or where is the mistake? So do you have some similar experiences in defining walls placed between two (or more) porous zones? I added two pictures of velocity and
temperature in down half of model.

Thanks a lot for your recommendations and advices.
Attached Images
File Type: jpg rezH3-z4,515m_velocity2.jpg (88.5 KB, 8 views)
File Type: jpg rezH3-z4,515m_temperature.jpg (65.6 KB, 6 views)
roupcik is offline   Reply With Quote

Old   April 15, 2013, 07:06
Default appendix
New Member
Join Date: Mar 2012
Posts: 16
Rep Power: 5
roupcik is on a distinguished road
I forgot.... the velocity inlet is the whole bottom of the geometry, the model is 3D and tubes mean square channels.

Thanks a lot.
roupcik 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
Natural convection in a closed domain STILL NEEDING help! Yr0gErG FLUENT 3 June 12, 2013 02:12
porous wall in diesel particulate filter (DPF) simple_freedom ANSYS 0 April 25, 2012 04:22
Interface setup for fluid & porous zones siw FLUENT 0 December 22, 2011 08:39
UDF for wall slipping HFLUENT Fluent UDF and Scheme Programming 0 April 27, 2011 12:03
POROUS WALL IN A PIPE nessi benishti FLUENT 4 August 5, 2005 13:10

All times are GMT -4. The time now is 16:32.