CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM

LES of periodic pipe centerline turbulent kinetic energy

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

LinkBack Thread Tools Search this Thread Display Modes
Old   November 30, 2010, 23:59
Default LES of periodic pipe centerline turbulent kinetic energy
M. Mahdi Salehi
Join Date: Mar 2009
Location: Vancouver, BC, Canada
Posts: 50
Rep Power: 17
smehdi609 is on a distinguished road
Hi Everyone,
I did an LES simulation of a periodic pipe (D=5mm) with channelOodles for the inlet condition of another LES simulation at Re=30,000. The averaged center-line turbulent kinetic energy is 1.5 which is much lower than the experimental value which is 3.85. The computed averaged turbulent kinetic energy is a spatial average in the periodic direction using the obtained LES velocity field. The sub-grid scale turbulent kinetic energy is of order of 0.15 which is negligible.
The length of pipe is 5D.
I was wondering if anyone knows where this anomaly comes from.
smehdi609 is offline   Reply With Quote


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
How to obtain turbulent kinetic energy data from LES model of Ansys CFX? rsin CFX 19 December 29, 2018 04:43
UDF for changing production of turbulent kinetic energy CFT FLUENT 0 April 20, 2009 02:35
turbulent kinetic energy and dissipation panneerselvam.R CFX 1 July 22, 2005 01:55
flow in pipe with momentum and energy source Atit Koonsrisuk CFX 3 March 29, 2005 16:58
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11

All times are GMT -4. The time now is 10:44.