CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

FDM derived from FVM

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

LinkBack Thread Tools Display Modes
Old   September 15, 2008, 14:12
Default FDM derived from FVM
Posts: n/a

I have a question concerning Finite Volume Methods.

Many papers, which I have seen describe finite volume techniques like finite differences. For instance:

d(Q*V)/dt + d(F)/dx = 0

Once, I was told that it is possible to derive a quasi-finite difference method from the integral formulation of the conservation laws. I have found a dissertation from Cheong which describes it briefly. What I understood is:

V*dQ/dt + dV/dt*Q = d(Q*V)/dt, V /= f(t) V*dQ/dt = d(Q*V)/dt

But I cannot see how this will help me for the second integral and the flux F. In that diss, the result is:


I would be really glad to see a paper or something else which describes that mathematical trick in details.

Thanks for your help, in advance.
  Reply With Quote


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
openfoam -> fem, fvm, fdm? tH3f0rC3 OpenFOAM 4 September 3, 2015 02:51
FDM vs FVM vs FEM in CFD analysis ck5285 FLOW-3D 1 September 1, 2009 10:51
Are the quations solved in FDM or FVM ? anon Main CFD Forum 0 December 12, 2005 23:29
Atleast 5 general Diffrences between FVM, FEM, FDM RAJ FLUENT 2 October 7, 2005 08:25
comments on FDM, FEM, FVM, SM, SEM, DSEM, BEM kenn Main CFD Forum 2 July 18, 2004 18:28

All times are GMT -4. The time now is 11:49.