CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

Boundary Layer Profile

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 18, 2012, 04:37
Default Boundary Layer Profile
  #1
New Member
 
Join Date: Mar 2012
Posts: 6
Rep Power: 5
anti-random is on a distinguished road
Hi,

I am analyzing the effect of a 2D roughness element in a Blasius boundary layer. So I insert the boundary layer as a profile at the inlet. Its thickness at this point is about 5mm. Now, the issue is at the very next node Fluent reduces the boundary layer thickness to about 0.5mm even though the geometry at this point is still a flat plate. I am wonder why this is the case. Theoretically, the boundary layer should grow as it progresses along the plate.

The major conditions are:
Inlet: Blasius profile
Wall: No-slip
The flow is laminar. No turbulence model.
Transient.

If someone could explain to me why this occurs it would be greatly appreciated.
anti-random is offline   Reply With Quote

Reply

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
Wind turbine simulation Saturn CFX 34 October 16, 2014 05:27
Boundary Profile E61 FLUENT 0 January 5, 2011 09:13
Boundary layer generation problems ivan_cozza OpenFOAM Native Meshers: snappyHexMesh and Others 0 October 6, 2010 13:47
Boundary Layer Meshing of a nosecone Chris FLUENT 1 March 15, 2005 13:42
New topic on same subject - Flow around race car Tudor Miron CFX 15 April 2, 2004 06:18


All times are GMT -4. The time now is 21:06.