CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

nut and nuTilda in simpleFoam

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 7, 2014, 14:42
Default nut and nuTilda in simpleFoam
  #1
Member
 
Michael Kruger
Join Date: Jul 2014
Location: South Africa
Posts: 38
Rep Power: 11
mich_K is on a distinguished road
What are the differences between nut and nuTilda in the simpleFoam solver?

In the PitzDaily simpleFoam tutorial, both nut and nuTilda are set to zero, does this mean the problem is modelled as inviscid?

In the airFoil2D tutorial both nut and nuTilda are given values of 0.14 m^2/s.

I believe the kinematic viscosity of air at room temp is about 15.11e-6 m^2/s, where in the world does the value of 0.14 m^2/s come from?? Is it perhaps because of a scaling factor introduced somewhere?

Any clarification on the subject will be greatly appreciated.

Thank you in advance.
mich_K is offline   Reply With Quote

Reply

Tags
nut nutilda, simplefoam, solver

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
nut and nuTilda phile OpenFOAM Running, Solving & CFD 32 June 13, 2020 09:53
how to set nut and nuTilda? aynjust OpenFOAM Pre-Processing 1 July 7, 2013 06:36
incorrect to use nuTilda wall functions for k-epsilon? newToOpenFoam OpenFOAM Pre-Processing 0 December 14, 2011 06:15
k-epsilon model and simpleFoam vaina74 OpenFOAM Running, Solving & CFD 4 February 20, 2011 13:36
nut values asharma OpenFOAM 20 February 17, 2011 13:35


All times are GMT -4. The time now is 23:50.