CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM

buoyantPimpleFoam calculates non-physical thick boundary layers/velociities in pipe

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

LinkBack Thread Tools Display Modes
Old   July 30, 2013, 19:24
Default buoyantPimpleFoam calculates non-physical thick boundary layers/velociities in pipe
Senior Member
Joachim Herb
Join Date: Sep 2010
Posts: 426
Rep Power: 13
jherb is on a distinguished road

I have a problem with buoyantPimpeFoam reported at the official bug tracker:

The test case (attached to the bug report) for a (2D) pipe flow simulated with buoyantPimpleFoam results in (non-physical) too thick boundary layers at the walls and therefore in a (much) too high central velocity in the pipe. Using buoyantSimpleFoam to simulate the same case shows results as expected. (Using the stationary result as initialization for the transient calculation does not help.)

(Doubling the number elements in the radial direction does not help either.)

Any help is appreciated
Thank you


with buoyantPimpleFoam after 2 s (its getting worse and worse):

Last edited by jherb; July 31, 2013 at 04:25.
jherb is offline   Reply With Quote


boundary layer, boundary layer thickness, buoyant flow, buoyant solver, buoyantpimplefoam

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
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
domain imbalance for enrgy equation happy CFX 14 September 6, 2012 01:54
Boundary layer thickness in pipe entrance Bo Jensen Main CFD Forum 2 April 6, 2007 22:53
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11
fluid flow fundas ram Main CFD Forum 5 June 17, 2000 21:31

All times are GMT -4. The time now is 20:25.