neighbor faces

February 15, 2005, 05:42

I use the UDF, I want to know how to identify the ID of the neighbor faces to a face known

February 15, 2005, 05:46

If you are talking about a shadow face, they take the same ID.

February 15, 2005, 08:09

I talke about an elementary face (f) for a grid. to solve the heat equation with a term source (surface condensation phenomenon ), one using a finite volume methods, it is necessary for me to know the neighbor face for each face f.

February 15, 2005, 10:33

See UDF manual pp. 5-6 to 5-9.

F_C0(f,tf) and F_C1(f,tf) give you the adjacent cells' indices.

THREAD_T0(tf) and THREAD_T1(tf) give you the ajacent threads.

Good luck!

February 15, 2005, 11:22

I want neighbor face (face f) for each (face f) not the adjacent cells' for face thank you

February 16, 2005, 04:08

What are you talking about?

If you have a grid:

|-2-|-5-| 1 3 6 |-4-|-7-|

What is the "neighbour face" of face 3?

February 16, 2005, 05:43

-1-2-3- -4-5-6- -7-8-9- If this numbers is supposed the faces of a grid. The neighbor faces 5 are 1,2,3,4,6,7,8,9.

February 16, 2005, 06:02

Sorry, this board has a few issues with white space - I should have previewed it. If you have a quad grid, of two cells. The face between them is face 3. The faces on one cell are 1, 2, 3, and 4 and on the other are 3, 5, 6 and 7.

If you have a grid:

| - 2 - | - 5 - |

1.......3.......6

| - 4 - | - 7 - |

What is the "neighbour face" of face 3?

February 16, 2005, 06:21

-1-2-3- -4-5-6- -7-8-9- If this numbers is supposed the faces of a grid. The neighbor faces 5 are 1,2,3,4,6,7,8,9.

February 15, 2005, 05:42	neighbor faces	#1
saghir Guest Posts: n/a	I use the UDF, I want to know how to identify the ID of the neighbor faces to a face known

February 15, 2005, 05:46	Re: neighbor faces	#2
Andrew Garrard Guest Posts: n/a	If you are talking about a shadow face, they take the same ID.

February 15, 2005, 08:09	Re: neighbor faces	#3
saghir Guest Posts: n/a	I talke about an elementary face (f) for a grid. to solve the heat equation with a term source (surface condensation phenomenon ), one using a finite volume methods, it is necessary for me to know the neighbor face for each face f.

February 15, 2005, 10:33	Re: neighbor faces	#4
Doru Grosan Guest Posts: n/a	See UDF manual pp. 5-6 to 5-9. F_C0(f,tf) and F_C1(f,tf) give you the adjacent cells' indices. THREAD_T0(tf) and THREAD_T1(tf) give you the ajacent threads. Good luck!

February 15, 2005, 11:22	Re: neighbor faces	#5
saghir Guest Posts: n/a	I want neighbor face (face f) for each (face f) not the adjacent cells' for face thank you

February 16, 2005, 04:08	Re: neighbor faces	#6
Andrew Garrard Guest Posts: n/a	What are you talking about? If you have a grid: \|-2-\|-5-\| 1 3 6 \|-4-\|-7-\| What is the "neighbour face" of face 3?

February 16, 2005, 05:43	Re: neighbor faces	#7
saghir Guest Posts: n/a	-1-2-3- -4-5-6- -7-8-9- If this numbers is supposed the faces of a grid. The neighbor faces 5 are 1,2,3,4,6,7,8,9.

February 16, 2005, 06:02	Re: neighbor faces	#8
Andrew Garrard Guest Posts: n/a	Sorry, this board has a few issues with white space - I should have previewed it. If you have a quad grid, of two cells. The face between them is face 3. The faces on one cell are 1, 2, 3, and 4 and on the other are 3, 5, 6 and 7. If you have a grid: \| - 2 - \| - 5 - \| 1.......3.......6 \| - 4 - \| - 7 - \| What is the "neighbour face" of face 3?

February 16, 2005, 06:21	Re: neighbor faces	#9
saghir Guest Posts: n/a	-1-2-3- -4-5-6- -7-8-9- If this numbers is supposed the faces of a grid. The neighbor faces 5 are 1,2,3,4,6,7,8,9.