Research Article

Resolution of the Generalized Eigenvalue Problem in the Neutron Diffusion Equation Discretized by the Finite Volume Method

Table 22

Langenbuch reactor power errors (%) corresponding to the first eigenvalue and HOM.

NodeStructured mesh
10 cm5 cm

10,887327590,083512937
20,4136360060,169843064
30,2858984990,26806574
41,6503541280,463970268
57,3081552892,443154619
60,4135780420,169901321
70,2181546840,211939733
80,895827420,279213792
92,4406292910,498489677
108,2451235982,368554084
110,2859385240,268114276
120,8958607830,279229236
131,4857783490,264874283
143,2503610670,503872312
158,2543950781,996055827
161,6504849960,46408882
172,4407378830,498585195
183,2504073710,5039109
196,5408738941,269229237
2010,490361323,000440824
217,3084605222,44345405
228,2453874012,368777266
238,254612671,99626084
2410,490534553,000606939
255,4667318960,931224354
264,1408488720,716286587
273,6574962670,698504374
282,2375795320,474563288
293,1896942021,268772356
304,1408365290,716252343
312,967758730,633299552
322,4761611230,618678432
330,9101783550,364113213
344,5488661371,200011218
353,6574677530,698474984
362,4761310910,618647924
372,9674421050,56874817
380,2922400820,412798339
394,2675818020,724868524
402,2374969310,474473118
410,9101025180,364043283
420,2922000020,412751132
432,9306473990,281476818
446,419144691,657371938
453,1898760241,268969435
464,5490155771,2001458
474,2677275160,724995924
486,4192330021,657446439