|December 1, 2010, 00:59||
LES of periodic pipe centerline turbulent kinetic energy
M. Mahdi Salehi
Join Date: Mar 2009
Location: Vancouver, BC, Canada
Posts: 50Rep Power: 8
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.
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to obtain turbulent kinetic energy data from LES model of Ansys CFX?||rsin||CFX||10||October 13, 2014 09:24|
|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|