Table 1. Fraction of cylinders oriented radially, calculated from mechanical and X-ray data and numerical modelling (standard deviations of measurements shown in brackets).

Flow rate (m3 s–1)	Plate separation (mm)	Mechanical testing	X-ray analysis	Numerical modelling with a critical value of ψ = 30
2.00 × 10–8	0.97	0.33 (±0.06)	0.21 (±0.09)	0.34
2.00 × 10–8	0.44	0.56 (±0.04)	0.50 (±0.08)	0.57
2.80 × 10–8	0.30	0.76 (±0.04)	0.59 (±0.07)	0.68
7.00 × 10–8	0.95	0.48 (±0.05)	0.51 (±0.05)	0.37
7.00 × 10–8	0.45	0.67 (±0.05)	0.58 (±0.06)	0.59
7.00 × 10–8	0.23	0.86 (±0.10)	0.63 (±0.08)	0.76