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

Denisty Current Turbulent Simulation Issues

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 8, 2018, 11:06
Default Denisty Current Turbulent Simulation Issues
  #1
New Member
 
Join Date: Jul 2016
Posts: 3
Rep Power: 4
Bish is on a distinguished road
Hi All,

I am trying to simulate a density current within a long water tank.
A small section of higher density fluid (salt water = 1060kg/m^3) is on the left and the rest is standard water (1000kg/m^3).

I am using buoyantBoussinesqPimpleFoam for the simulation and it starts as if a lock gate is instantaneously removed.

I believe I have the correct properties for water and correct boundary conditions. I have attached a picture of the initial setup.

However, I have attached a picture of my laminar simulation after the first couple of time steps which is what I would expect.

But for my turbulent flow, the temperature seems to immediately diffusive and I'm not too sure this is correct as in the picture I have attached.

I am comparing to this video:
https://www.youtube.com/watch?v=4ENuf24gEUw
in which you can clearing see the eddies being formed etc.

Does anyone have any ideas why my simulation seems incorrect?
I can send any of the simulation information you may need.

(Also, where is the best place to obtain property values of your medium in question? I assume experimental but I don't know of/can't find a good online source)

Thanks,
Bish
Attached Images
File Type: jpg lockGateTurb.jpg (23.7 KB, 10 views)
File Type: jpg lockGateLam.jpg (24.0 KB, 11 views)
File Type: jpg lockGate.jpg (23.4 KB, 11 views)
Bish is offline   Reply With Quote

Reply

Tags
boussinesq approximation, density current, turbulent

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Current density visualisation (PEM fuel cell add-on module) pchoopanya FLUENT 9 April 2, 2018 03:27
Convergence issues for a 3D Centrifugal pump simulation using ANSYS CFX enr_venkat CFX 7 August 31, 2016 19:58
Help on Maxwell simulation - saturation current of a magnetic inductor sunteng1212 ANSYS 1 June 2, 2016 13:30
Large Eddy simulation Andreas Hauser Main CFD Forum 1 May 20, 2000 21:33
COMPARISON BETWEEN VARIOUS CFD SIMULATION APPROACHS OF REACTIVE TURBULENT FLOWS mounir Main CFD Forum 4 March 3, 1999 13:07


All times are GMT -4. The time now is 23:17.