CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM

Difference in the predicted locations of hydraulic jump (kOmegaSSTDDES vs kOmegaSST)

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

LinkBack Thread Tools Search this Thread Display Modes
Old   November 20, 2019, 06:26
Default Difference in the predicted locations of hydraulic jump (kOmegaSSTDDES vs kOmegaSST)
Join Date: Aug 2018
Posts: 47
Rep Power: 7
foamF is on a distinguished road
I just did a simulation of hydraulic jump (2D case) to compare two turbulence models: RANS based kOmegaSST and DES based kOmegaSSTDDES. The simulation result is put in:

Same grids and same boundary conditions in both cases.

The 2D case is physically incorrect to simulate turbulence which is 3D in nature, but it still offers some clues on turbulence modelling.

The location of the hydraulic jump predicted by the kOmegaSST model is much farther from the inlet than that of kOmegaSSTDDES. Can someone here explain the locations of the hydraulic jump predicted by both turbulence models?
foamF is offline   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
Hydraulic Jump with St Venant Equations IbizaFR Main CFD Forum 0 January 28, 2019 13:00
Why RNGkepsilon model gives floating error shipman OpenFOAM Running, Solving & CFD 3 September 7, 2013 08:00
difference between kOmegaSST (OF-1.7.x) and kOmegaSST_lowRe (OF-1.6-ext) florian_krause OpenFOAM 3 May 16, 2012 09:02
hydraulic jump thomi tomsen Main CFD Forum 0 March 22, 2001 07:50
HYDRAULIC JUMP Valdemir G. Ferreira Main CFD Forum 3 October 29, 1999 09:35

All times are GMT -4. The time now is 21:08.