CFD Online URL
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Extra term in the Xoodle solver for Psi

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 4, 2008, 08:11
Default Hi there, I am following the
  #1
New Member
 
Sergio Ferraris
Join Date: Mar 2009
Posts: 17
Rep Power: 7
sergio is on a distinguished road
Hi there,
I am following the equation for Psi for turbulent deflagration. It looks as:

solve
(
fvm::ddt(rho, Xi)
+ fvm::div(phi + phiXi, Xi, "div(phiXi,Xi)")
- fvm::Sp(fvc::div(phiXi), Xi)
==
rho*R
- fvm::Sp(rho*(R - G), Xi)
- fvm::Sp
(
rho*max
(
sigmat - sigmas,
dimensionedScalar("0", sigmat.dimensions(), 0)
),
Xi
)
);

I quiet understand all the terms but:

-fvm::Sp(fvc::div(phiXi), Xi)

This term is div(phiXi,Xi) but it is already included in fvm::div(phi + phiXi, Xi, "div(phiXi,Xi)")

and is after substracted?. There is something not clear to me about how this term is included in the equation.

thanks

Sergio
sergio 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
Laplacian viscous stress term in compressible solver jelmer OpenFOAM Running, Solving & CFD 3 June 23, 2006 08:31
Extra information needed. Kapil S Main CFD Forum 0 March 29, 2006 11:00
Solver was interupted by signal TERM(15). Tony CFX 4 October 1, 2004 16:39
Extra Stress Tensor M. Tabaddor FLUENT 0 February 15, 2002 12:35
Extra term in Epsilon equation Valdemir G. Ferreira Main CFD Forum 0 April 30, 2000 09:57


All times are GMT -4. The time now is 21:35.