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

Use of k-epsilon and k-omega Models

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

Like Tree158Likes

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 27, 2023, 07:18
Default Nice !!! Thank you
  #41
New Member
 
harry peter
Join Date: Oct 2022
Posts: 1
Rep Power: 0
harrypeter202214@gmail.co is on a distinguished road
Nice !!! Thank you


Quote:
Originally Posted by jade m View Post
i've extensively researched k-epsilon and omega based models including sst.

I've read about the disadvantages of k-epsilon which are that it is only valid for fully turbulent flow and non-separated flows and that it can have stability issues due to numerical stiffness. Are there any advantages to the k-epsilon model? This models seems to still be a widely used model despite its disadvantages. In my (limited) experience, its validity only for fully turbulent flows and non-separated flows seems to narrow its applicability quite a bit.

Based on the advantages of sst and my experience, there does not appear to ever be any reason to choose k-epsilon over sst. Is this correct? What are the disadvantages of using sst?

Thanks in advance for any information. I would really like to determine the answer to these questions so i would be very grateful for any responses.
harrypeter202214@gmail.co is offline   Reply With Quote

Reply

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
Bounding epsilon or bounding omega Stylianos OpenFOAM 8 February 23, 2018 13:41
SimpleFoam k and epsilon bounded nedved OpenFOAM Running, Solving & CFD 16 March 4, 2017 08:30
Standard K Epsilon and Transitional SST models Robin FLUENT 1 January 17, 2010 18:06
Use of k omega turbulence model john_w OpenFOAM Running, Solving & CFD 2 September 22, 2009 05:15
SimpleFoam k and epsilon bounded nedved OpenFOAM Running, Solving & CFD 1 November 25, 2008 20:21


All times are GMT -4. The time now is 20:47.