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

Boundary layer thickness calculation

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 9, 2009, 06:04
Default Boundary layer thickness calculation
New Member
Join Date: Apr 2009
Posts: 2
Rep Power: 0
nat is on a distinguished road

I am trying to get the boundary layer thickness over a flat plate with an elliptical leading edge (2d). The flat plate is 2m long, 0.2m thick. It is located freestream with the limit of the doamin 40m away of the plate in all directions.The speed is 47m/s, I used the k-epsilon with the enhanced wall treatment as I have a y+<5. I used the pressure farfield boundary conditions. To get the boundary layer thickness I went through the following steps:

- draw lines perpendicular to the surface (profile).
- export total pressure profile along the lines.
- in excel I extract the boundary layer thickness using 99% of the total pressure for each profile.

I obtain a boundary layer thickness which is totally. However my Fluent simulation looks right: convergence, y+, pressure distribution, etc.

Has somebody an idea of what is going wrong with my simulation? Does somebody know a more straightforward method to get the boundary layer characteristics from Fluent?

Thanks by advace!
nat is offline   Reply With Quote


boundary layer thickness

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
plotting boundary layer thickness graphs in a 3d Neelima FLUENT 1 March 29, 2006 18:04
Warning 097- AB Siemens 6 November 15, 2004 04:41
errors Fahad Main CFD Forum 0 March 23, 2004 13:20
Wall turbulence, viscosity, boundary layer Patrick Godon Main CFD Forum 1 November 5, 2003 15:39
boundary layer thickness 98.4F Main CFD Forum 1 December 29, 2000 07:23

All times are GMT -4. The time now is 18:33.