Richardson Extrapolation-Based Verification Method of Scientific Calculation Program without the Oracles: A Case Study

Table 3

The neutron flux values of in different refined grids.

Mesh	Element	The neutron flux value of for 1th group energy.	Ratio1	The neutron flux value of for 2th group energy.	Ratio1
	18	6.641297145594463E-002		6.641294098874310E-002
	36	6.660342485457200E-002		6.660331582277153E-002
	72	6.665076278267033E-002	4.02327280213385	6.665082494407264E-002	4.00712176556248
	144	6.666264561430789E-002	3.98372454834075	6.666253389102599E-002	4.05750589616633
	288	6.666565458515177E-002	3.94913485510786	6.666562905904372E-002	3.78297620234630
	576	6.666633289577738E-002	4.43597775157830	6.666641383170335E-002	3.94403140799427