|
[Sponsors] |
February 22, 2002, 09:59 |
High-Order FVM
|
#1 |
Guest
Posts: n/a
|
Hi, All! Could you please tell me whether there are some high-order meshes (like the one used used in FEM) available for FVM? Thank you and have a good weekend!
David |
|
February 24, 2002, 21:43 |
Re: High-Order FVM
|
#2 |
Guest
Posts: n/a
|
If you use an FVEM (or discontinuous Galerkin) scheme, you will be able to use higher-order interpolation functions. For these methods, you can choose the appropriate interpolation functions for the type of problems you are dealing with. Since, the weight functions are constant by cells (one over the cell, zero elsewhere), you end up with a Finite Volume scheme. Nevertheless, it will be harder to construct a stable scheme.
|
|
February 27, 2002, 04:44 |
Re: High-Order FVM
|
#3 |
Guest
Posts: n/a
|
Maybe by choosing better method to compute the gradient of the cell center , you can get more accurate values on the interface of a control volume, then you can compute more accurate numeric flux.
You may use Green theorem, or least square method to calculate gradient. Someone use Green theorem to get third order result. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
IS calc. with 2nd order discret. always necessary? | Azman | FLUENT | 2 | March 14, 2013 05:28 |
How to compute UDS fourth order gradient | Emma66 | FLUENT | 1 | April 27, 2010 06:44 |
OpenFOAM - 2nd order of discretization? | makaveli_lcf | OpenFOAM Running, Solving & CFD | 0 | November 12, 2009 08:15 |
High order FVM scheme .... | cfd_newbie | FLUENT | 0 | February 4, 2008 14:43 |
High order difference scheme for KIVA3v2??? | LiQiang | Main CFD Forum | 1 | May 9, 2005 14:50 |