|
[Sponsors] |
July 26, 2012, 10:03 |
Implicit gradient scheme, fvm::grad() ??
|
#1 |
New Member
Tian Tang
Join Date: Jun 2012
Location: Copenhagen, Denmark
Posts: 18
Rep Power: 13 |
hi, dear all,
i would like to ask a question about whether there is possiblity to have an implicit gradient scheme. I am solving the momentum equation with pressure coupling, and i would like to use the block matrix solver. fvm::grad(p) seems necessary for constructing the coupling coefficients in the block. i searched this in the forum, in 2006 this question has been asked and the answer was no. I am very curious about what is the situation now? could anyone give me some helps? Thanks ahead! |
|
July 31, 2012, 17:06 |
|
#2 |
Member
Haomin Yuan
Join Date: Jan 2012
Location: Madison, Wisconsin, USA
Posts: 59
Rep Power: 14 |
I am afraid you have to write a fvm::grad yourself, this function is not available in latest official version of OF.
|
|
August 1, 2012, 04:24 |
|
#3 | |
New Member
Tian Tang
Join Date: Jun 2012
Location: Copenhagen, Denmark
Posts: 18
Rep Power: 13 |
Quote:
thanks for your reply Yes, i've just figured out no implicit gradient operator availble in openfoam yet, but there are some researchers did manage to solve the pressure coupling implicitly. i found this interesting paper in the 7th OpenFOAM Workshop by L. Mangani , M. Darwish2 and M. Buchmayr. the title is A fully integrated pressure based coupled solver using block GAMG acceleration. i'm reading the related reference at present, hopefully i could find the way out. regards, Tian |
||
July 6, 2014, 14:40 |
|
#4 |
New Member
Xiangyu Gao
Join Date: Sep 2013
Location: West Lafayette, IN, USA
Posts: 29
Rep Power: 12 |
Hi, Tian
Have you figured out how to express grad() implicitly? I am now facing the same problem.......... Regards, |
|
October 2, 2014, 05:41 |
|
#5 |
Member
Join Date: Nov 2012
Posts: 83
Rep Power: 13 |
fvm::grad is available in extended 3.1
|
|
December 4, 2015, 11:56 |
|
#6 | |
Member
james wilson
Join Date: Aug 2014
Location: Orlando, Fl
Posts: 39
Rep Power: 11 |
Quote:
James |
||
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
2D Implicit HLLC scheme | harish_0689@ | Main CFD Forum | 2 | January 21, 2012 14:22 |
Is there a corrected Gauss gradient scheme? | bigphil | OpenFOAM | 1 | November 27, 2011 09:54 |
Is it feasible to apply implicit scheme in LES | EagleGao | Main CFD Forum | 2 | October 24, 2011 15:04 |
time_step, implicit scheme, number of iterations | Isa | Main CFD Forum | 3 | May 11, 2006 13:27 |
Komogrov time scale and implicit scheme for LES | Li Yang | Main CFD Forum | 1 | January 17, 2004 02:13 |