1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
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Integro-differential – Discretized formulation• Discretized angular variable – DiscreteOrdinates (Sn) method: considering aconservation criteria,ˆmA set of { ˆ , w m } obtained, <strong>and</strong>.m ˆ . ( , , ) ( , ) ( , , ˆ r E r E r E ) q(r,E,ˆmmm), m=1, M0.20.4V20.60.8110.80.6V10.40.2X10000• Discretized spatial variable:Integrated over fine meshes using Finite Volume or FEmethodsm,g,AVdVijkg ( r ) m,gVijk( r )• Discretized energy variable:Multigroup approach: Energyrange, e.g., [0, 20 MeV], ispartitioned into G groups,g=5g=4g=3g=2g=1Where,<strong>Nuclear</strong> <strong>Engineering</strong>Program 10
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