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通量

Posted: Wed May 12, 2021 2:50 pm
by smitten
hello,
If I want to calculate the neutron flux distribution of each rod in the entire reactor, or the distribution of a specific rod, how to achieve it,just like the syntax 'set cpd' to get the power distribution of each fuel rod ,thank you:(
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Re: 通量

Posted: Wed May 12, 2021 3:07 pm
by Ana Jambrina
Use the detector card, see ‘det’, to define the detector/tally that represents the estimate you are looking for.
Additional information and examples can be found in the Serpent 1 manual (Section 7.1) and/or the Tutorial and/or the Collection of example input files.

Re: 通量

Posted: Wed May 12, 2021 3:37 pm
by smitten
I know how to use 'dl' to calculate the flux of the fuel assembly grid, but because there are fuel rod grid divisions in the assembly, I don’t know how to calculate the flux of each fuel rod in the assembly, do I need to use "dl" to calculate twice ?

Re: 通量

Posted: Wed May 12, 2021 3:49 pm
by Ana Jambrina
Instead of a lattice detector, 'dl', you could use mesh-detectors (super-imposed collision detectors): e.g. 'dx'/'dy'/'dz' (Cartesian), 'dh' (hexagonal) or, 'dn' (curvilinear).

Note: the spatial integration domain for each detector needs to be specified: e.g., if you use mesh detectors, you could define a pin-level mesh-detector, an assembly-level mesh-detector and/or full-core mesh-detector. Nonetheless, you could always do some post-processing on the detectors' estimates.

Re: 通量

Posted: Wed May 12, 2021 3:55 pm
by smitten
I seem to understand what you mean, thank you very much