I need some guidance regarding creating a lattice similar to the mtr design in which the two outer most plates are of greater thickness than all the other plates while between each two fuel plate, there exists a water channel of another variable thickness.
What pitch must I give for this type of geometry, as for the water channel it will automatically be assigned but, when all channels will be placed in the lattice, but I am getting error when trying to place plates of different thicknesses.
Let’s say the outermost two plates are of thickness 2 cm while there are 10 other inner plates of thickness 1.5 cm, and I need to give a water channel between each of the consecutive fuel plates of thickness 2.5 cm. The total height in y direction is 51.5 cm, and for the plates if I create 2 universes for each plate with infinite water at its outer should I give the pitch as 4.0833 if I consider 1.25cm of water at both sides of each plate considering the lattice lower left at -49/2. I tried this approach and this should’ve worked but it doesn’t.
Can someone please correct me where I am wrong, because I seem to get an error that tuple index is out of range and from where I have understood, it occurs whenever I place an incorrect entity in the lower left or pitch of the lattice.