How to implement block-to-block B.C?

January 20, 2002, 21:43

Dear everyone:

I want to write a program dealing with multiblock,but I don't known how to implement block-to-block B.C,especially when two block have different grids.

All comments are much appreciated!

January 21, 2002, 09:18

Hello Zhao,

You can firstly generate two layers of ghost cells on every boundaries for each block. After that, what you need is to get the information for those halo cells from other blocks by either interpolation or transformation.

Good luck

Li

January 21, 2002, 11:33

or go straight to unstructured index addressing in your code so that there is nor boundary between blocks at all - there are just like any other internal cell faces even if they not not matched one-by-one.

February 13, 2002, 15:59

This is surely the simplest solution. But, besides the quadrilateral elements obtained, what advantages will I have if I use this kind of connectivity?

January 20, 2002, 21:43	How to implement block-to-block B.C?	#1
peter.zhao Guest Posts: n/a	Dear everyone: I want to write a program dealing with multiblock,but I don't known how to implement block-to-block B.C,especially when two block have different grids. All comments are much appreciated!

January 21, 2002, 09:18	Re: How to implement block-to-block B.C?	#2
Li Yang Guest Posts: n/a	Hello Zhao, You can firstly generate two layers of ghost cells on every boundaries for each block. After that, what you need is to get the information for those halo cells from other blocks by either interpolation or transformation. Good luck Li

January 21, 2002, 11:33	Re: How to implement block-to-block B.C?	#3
John Guest Posts: n/a	or go straight to unstructured index addressing in your code so that there is nor boundary between blocks at all - there are just like any other internal cell faces even if they not not matched one-by-one.

February 13, 2002, 15:59	Re: How to implement block-to-block B.C?	#4
Márcio Ricardo Pivello Guest Posts: n/a	This is surely the simplest solution. But, besides the quadrilateral elements obtained, what advantages will I have if I use this kind of connectivity?

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