CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

Zero Wall shear stress at porous interface

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 18, 2017, 10:53
Default Zero Wall shear stress at porous interface
Join Date: Sep 2011
Posts: 87
Rep Power: 13
ftab is on a distinguished road
Hi all,
I am modeling a tube of incompressible flow with porous wall (artery) having the plasma infilterated into the wall. The velocity looks correct to me both inside the artery and wall. However, the wall shear stress is zero on the interface. I assume that it is because of normal infiltration having no gradient near the wall, but in practice we should have wall shear stress, right?
No slip boundary definitely gives you WSS, totally makes sense. I am confused if with infiltration CFX is doing something weird on the interface and I need to calculate WSS with CEL instead of trusting WSS values of CFD-post.
ftab is offline   Reply With Quote


porous interface, wall shear stress

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
Wall Shear Stress prediction varies with fix y+ Jeeloong FLUENT 0 November 24, 2016 17:17
Question about heat transfer coefficient setting for CFX Anna Tian CFX 1 June 16, 2013 06:28
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 04:05
shear stress scalar definitions? Novak Elliott CFX 0 April 6, 2003 01:45
What is the detail definition of wall shear stress zjm FLUENT 0 January 2, 2002 07:43

All times are GMT -4. The time now is 10:16.