Lattice Definition

User Support
1

Hye

I have a question about lattice definition in OpenMC. For example if i define a lattice given below

-23.1 -36.45 7.7 8.1 3 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 31 30 30 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 16 17 18 19 20 21 22 23 24 25 26 27 28 29

which assembly will be placed at bottom left?? either it will be universe “24” or universe “30”?

2

i am asking this as i think there is a problem with meshline plotter code. For symmetric geometries, it doesn’t show up. but i am dealing with a slightly skewed geometry in which it is coming up. can you confirm that please

3

In your example, universe 24 would show up in the bottom left, i.e. the appearance in the input file is as if you were looking top down on the model.

Best,
Paul

4

Dear Paul,

Thanks for your reply. After your reply i can say that there is a problem with meshline plotter capability. the line which is supposed to be drawn at -x is drawn at +x and vice versa. You should take a look at that.

thanks for your help

5

as i see in the github repository, this has been fixed by @nhorelik
https://github.com/mit-crpg/openmc/pull/350

thank you very much. keep up the good work.