|
[Sponsors] |
October 18, 2012, 04:54 |
to linearize the convective term in OF...
|
#1 |
Member
Tom
Join Date: Jan 2012
Location: France
Posts: 43
Rep Power: 14 |
Hi there,
I have to insert in the equation this term: (U_j+Ug_j)*d(U_i+Ug_i)/dx_j where Ug_i are the components of a given velocity field and U_j are the component of the velocity I want to solve to. This above is the convective term in the expression "u*grad(u)"-like. I know OF prefers the "div(u X u)" form and even that a volume velocity flux "phi" must be introduced. By the way in the case of the given Ug velocity field I even have its flux field, and they do not change in the PISO scheme... -how can I do? Is it possible? -How does the pressure equation change? Thank you in advance! |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Better organization of Convective Term approximation schemes | Michail | CFD-Wiki | 0 | March 15, 2012 12:56 |
RAS Turbulence Models - Convective Term | john_w | OpenFOAM | 3 | May 29, 2010 21:31 |
ATTENTION! Reliability problems in CFX 5.7 | Joseph | CFX | 14 | April 20, 2010 15:45 |
How to suppress the convective term | SAKTI | Siemens | 1 | August 28, 2008 01:38 |
Convective term evaluated at time n+1/2 | Lionel S. | Main CFD Forum | 0 | February 12, 2007 14:22 |