Changes between Version 5 and Version 6 of GuarDyan_PhysModel


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Timestamp:
Feb 13, 2018, 2:56:48 PM (6 years ago)
Author:
dieda
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  • GuarDyan_PhysModel

    v5 v6  
    1111== Verification
    1212
     13=== Verification Methodology
     14
    1315Often a verification of a newly implemented reactor physics code is done in an integral sense, on a near critical assembly with complicated geometry and the estimation of integral parameters like the k,,eff,, is compared to a well established code calculation result. As GUARDYAN is meant primarily to simulate time evolution of power level and flux we have decided to compare time and energy spectra separately for a broad selection of isotopes. A small subcritical model was also created for validating geometry features and isotope mixture handling.
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    … …  
    1719The list of isotopes includes every isotope present in ENDF/B-VII.1, except for the metastable ones.
    1820
    19 The subcritical model was a 30 cm radius water sphere with 61 UO,,2,, cylindrical fuel rods of 40 cm length, 1 cm radius spaced 1 cm apart from each other see figure. Uranium was 4.7% enriched and fuel rod density was taken as 10.5g/cm^3^.
     21The subcritical model was a 30 cm radius water sphere with 61 UO,,2,, cylindrical fuel rods of 40 cm length, 1 cm radius spaced 1 cm apart from each other see Fig. 1.. Uranium was 4.7% enriched and fuel rod density was taken as 10.5g/cm^3^.
    2022
    21 [[Image(UOH2O_geometry.png​, 400px, title=Geometry of the subcritical verification model)]] \\ ''Geometry of the subcritical verification model''
     23[[Image(UOH2O_geometry.png​, 400px, title=Geometry of the subcritical verification model)]] \\ ''Figure 1. :Geometry of the subcritical verification model''
    2224
    2325Similarly, a time-energy spectrum is registered in this case as well.
     26
     27=== Verification Results
     28
     29For each isotope a figure has been created for visual inspection see Fig. 2. Separate figures are energy spectra of the number of particles crossing the sphere outer surface divided by the starting particle number, each figure belongs to a separate time interval.
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