CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Programming & Development

buoyantFoam without pressure-density coupling

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 2, 2009, 05:25
Default buoyantFoam without pressure-density coupling
  #1
Senior Member
 
Fabian Braennstroem
Join Date: Mar 2009
Posts: 407
Rep Power: 10
braennstroem is on a distinguished road
Hi,

I would like to adjust the current buoyantPisoFoam solver, so that rho is independent of the current pressure. I thought, it would be easiest to adjust in equationOfState the perfectGas files (I included the base pressure) ...

so basically the calculation in perfectGasI.H for rho looks like:

return p0_/(R()*T);

unfortunately, it seems to have no influence on the calculation.

The thermal properties are

thermoType hRhoThermo<pureMixture<constTransport<specieThermo <hConstThermo<perfectGas>>>>>;

and the mixture is adjusted with an additional entry for the base-pressure p0_.

Would be nice, if anyone has some suggestions.

Fabian
braennstroem is offline   Reply With Quote

Old   March 9, 2010, 05:42
Default
  #2
New Member
 
Fabian Korn
Join Date: Mar 2009
Location: Heilbronn, Germany
Posts: 21
Rep Power: 8
fabian_korn is on a distinguished road
Hi,

i have a similar problem, did you have any success with changing the buoyant solver?
fabian_korn is offline   Reply With Quote

Old   March 11, 2010, 15:59
Default
  #3
Senior Member
 
Fabian Braennstroem
Join Date: Mar 2009
Posts: 407
Rep Power: 10
braennstroem is on a distinguished road
Hello Fabian,

no... :-(

Fabian
braennstroem is offline   Reply With Quote

Reply

Thread Tools
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
Physical meaning of pressure in pressure eqn dontknow Main CFD Forum 2 August 30, 2010 10:12
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Fluent Vs CFX, density and pressure Omer CFX 9 June 28, 2007 04:13
conservative total pressure and density Atit Koonsrisuk CFX 0 June 24, 2007 12:45
Warning 097- AB CD-adapco 6 November 15, 2004 05:41


All times are GMT -4. The time now is 00:31.