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

How to prescribe fully developed turbulent velocity profile at inlet?

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 21, 2013, 10:46
Default How to prescribe fully developed turbulent velocity profile at inlet?
  #1
New Member
 
Join Date: Jan 2013
Posts: 20
Rep Power: 13
nore5 is on a distinguished road
Hi everybody,

While doing a simulation of flow around wall mounted cube, I found in Franjo Juretic Phd thesis that one way to have a fully developed turbulent velocity at the inlet was to do a separate channel flow simulation and then interpolate it onto the inlet using cubic interpolation.

You can read more on page 162:

http://powerlab.fsb.hr/ped/kturbo/Op...JureticPhD.pdf


I want to do so in OpenFoam, so I adapted the geometry of the channel395 tutorial to my case dimensions and got the flow field. The way I understood this suggestion is to take the field at some point in the domain and map it into the inlet of the domain with the cube. I first naively thought that Mapfields could do so but what is the link with cubic interpolation then?

Please could you help me with understanding this suggestion? I don t know in fact if I should use the velocity profile at the outlet of channel flow and map it (or interpolate it) at the inlet of my geometry with the cube. Or maybe I am wrong?

Also please, how to assure this interpolation in openFoam?
Is there a utility for that please?

Thank you in advance for your answers ( I really think I need them as I donīt know how to start)

Regards,

Nore
nore5 is offline   Reply With Quote

Old   February 22, 2013, 09:30
Default
  #2
New Member
 
Join Date: Jan 2013
Posts: 20
Rep Power: 13
nore5 is on a distinguished road
Does anybody has a clue about how to proceed please?

Thanks again.

Nore
nore5 is offline   Reply With Quote

Reply


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
How to export velocity profile and load it as inlet condition wangy16 FLUENT 38 March 13, 2019 06:43
Fully developed flow profile icfd Main CFD Forum 3 May 20, 2009 22:21
problem with velocity inlet profile file Duncan FLUENT 3 November 21, 2005 07:28
inlet velocity profile in Polyflow srinu FLUENT 0 January 16, 2003 20:25
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 05:13


All times are GMT -4. The time now is 03:48.