CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

LES inlet length scale

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

LinkBack Thread Tools Search this Thread Display Modes
Old   January 31, 2005, 13:26
Default LES inlet length scale
Posts: n/a

I am studying the LES of a turbulent jet.

I would like to be able to estimate the length scale of the turbulence at the inlet.

I can obvioiusly estimate the kolmogorov scale and also the integral scale (L), but i would expect the scale at the inlet to be somewhere between these.

All i know from experimental data is the axial mean and RMS velocity profiles (about 5% intensity), and the diameter of the jet inlet (d).

How can i estimate a good length scale (and time scale for that matter) for this case at the inlet?

Thankyou for your help.

  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
Integral Length Scale vs Turbulent Length Scale Scott Nordsen FLUENT 2 January 20, 2014 01:17
how to calculate Turbulent Length Scale nuimlabib Main CFD Forum 2 August 18, 2009 04:22
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 05:13
Length scale was zero chris Siemens 2 September 10, 2001 09:12
Characteristic Length Scale Thomas P. Abraham Main CFD Forum 2 April 20, 1999 17:16

All times are GMT -4. The time now is 18:34.