Wenbo, 2017-03-12 23:01 GMT-04:00 <zhaowenbo.n...@gmail.com>: > I am sorry. I should give my case more details. > The reactor core consists of 17*17 assembly, which consists of 17*17 fuel > pins. > If the material propeties, named cross sections, varies in assembly wise, > your solution is OK. > If varies in fuel pin wise, it doesn't work in my opinion. Is it correct? No it works. Let's say for simplicity that you just want to mesh a single assembly. You can first create a mesh with 4 cells, i.e. (A+B)*(A+B) with A = 16*B Now you can refine A so to get the right number of cells. At the end, you won't get a 17*17 mesh but you have a mesh that is distributed and you can assign a single material ID to each cell.
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