quick discretization

January 6, 2003, 11:21

Hi,

Can anyone tell me, is it possible to use the quick discretization scheme on a 3d fully tetrahedral grid?

January 6, 2003, 13:18

Hey Bob,
it can be used, but it should not. It's a parabolic scheme, where 2 nodes upstream and one downstream will be used. That can get pretty messy, in a tetrahedral mesh. Maybe you will spend a long time getting a converged solution.
Greetings, Marc

January 7, 2003, 01:22

Many known schemes can not be directly used in unstructured grid. But you can devise some approximation way to create an upwind direction and use higer order interpolation to construct analogeous scheme.

January 6, 2003, 11:21	quick discretization	#1
Bob Guest Posts: n/a	Hi, Can anyone tell me, is it possible to use the quick discretization scheme on a 3d fully tetrahedral grid?

January 6, 2003, 13:18	Re: quick discretization	#2
Marc Guest Posts: n/a	Hey Bob, it can be used, but it should not. It's a parabolic scheme, where 2 nodes upstream and one downstream will be used. That can get pretty messy, in a tetrahedral mesh. Maybe you will spend a long time getting a converged solution. Greetings, Marc

January 7, 2003, 01:22	Re: quick discretization	#3
versi Guest Posts: n/a	Many known schemes can not be directly used in unstructured grid. But you can devise some approximation way to create an upwind direction and use higer order interpolation to construct analogeous scheme.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Convergence and discretization	karananand	FLUENT	3	August 29, 2010 06:07
Discretization and convergence	karananand	Main CFD Forum	0	August 4, 2010 16:19
Space and time discretization of Euler equation	Hooman	Main CFD Forum	2	June 6, 2010 08:30
Problemas with Quick	titio	OpenFOAM Running, Solving & CFD	4	May 12, 2010 06:09
Quick Discretization	Bob	FLUENT	4	January 8, 2003 05:03