CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

convert measured roughness to sand grain roughness

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 30, 2014, 09:25
Default convert measured roughness to sand grain roughness
  #1
New Member
 
Catherine Meissner
Join Date: Apr 2014
Posts: 1
Rep Power: 0
Catherine79 is on a distinguished road
Hello,
I am comparing different CFD codes and I am unfortunately not an expert on CFX. Can somebody explain me which factor CFX uses to convert measured roughness into sand grain roughness which is then used in the wall functions?
Catherine79 is offline   Reply With Quote

Old   April 30, 2014, 18:59
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,949
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
This is discussed in the documentation- theory guide, section 2.8.1.4.
ghorrocks is online now   Reply With Quote

Reply

Tags
conversion, measured roughness, sand grain roughness, wall functions

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
nutRoughWallFunction and Surface Roughness Documented AlanR OpenFOAM Programming & Development 48 July 31, 2015 02:47
Laminar flow and wall roughness junbbung FLUENT 1 December 2, 2012 06:57
How to convert DRM protected music and movies to MP4/AVI/MOV/MP3/WMV/AAC... urutyerid6 ANSYS 0 April 22, 2010 04:52
NACA standart roughness DAK565656 Main CFD Forum 2 August 24, 2005 00:47
Roughness adaptation in CFX 4.4 Bart CFX 1 May 2, 2003 08:32


All times are GMT -4. The time now is 05:44.