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

Table 5

2D homogeneous reactor power errors (%) corresponding to the second eigenvalue.

Node	Structured mesh			Unstructured mesh
	10 cm	5 cm	2 cm	10 cm	5 cm	2 cm
1	0.010699	0.002026	0.000177	0.064440	0.131450	0.023185
2	—	—	—	—	—	—
3	0.011767	0.000900	0.000735	0.218325	0.056848	0.013567
4	0.013305	0.002670	0.000291	0.370735	0.142994	0.009263
5	—	—	—	—	—	—
6	0.012219	0.003781	0.001195	0.270132	0.000779	0.021504
7	0.010706	0.002026	0.000135	0.116602	0.091269	0.018453
8	—	—	—	—	—	—
9	0.011767	0.000900	0.000693	0.228939	0.057844	0.029325