CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

How to obtain subgrid tubulent kinetic energy in udf?

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 24, 2022, 11:35
Post How to obtain subgrid tubulent kinetic energy in udf?
  #1
New Member
 
Lee
Join Date: Mar 2018
Posts: 4
Rep Power: 8
lishengnan is on a distinguished road
How to obtain sgs TKE in FLUNET udf not in post-processing?
The sgs model I used is dynamic smagorinsky model, I don't know how to call the subgrid dynamic smagorinsky const(Cs) or sgs turbulent viscosity(μsgs) at C side. Someone told me the ksgs=(μsgs/ρ/lsgs)^2, lsgs=min(0.41*C_WALL_DIST,Cs*C_VOLUME^1/3), Cs is not const in dynamic sgs model, Cs can be plotted at FLUENT side, but I want to call it at C side. So μsgs is.
If choose the Kinetic-Energy Transport model, the ksgs can be plotted at FLUENT side, but I can't transfer it to C side also.
lishengnan is offline   Reply With Quote

Reply

Tags
les, sgs, udf


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
High energy imbalance when using UDF Tpozkar FLUENT 1 November 8, 2017 22:02
question about turbulent kinetic energy junker4236 Main CFD Forum 19 April 19, 2017 05:46
Problem with Turbulence Kinetic Energy Davide_sd FLUENT 22 August 7, 2014 14:57
UDF for energy source João Fernandes FLUENT 4 October 17, 2008 05:53
what's the macro of SGS turbulent kinetic energy? lcw FLUENT 1 June 13, 2006 04:08


All times are GMT -4. The time now is 14:56.