Calibration of Discrete Element Simulation Parameters for Powder Screw Conveying

Table 5

Design and results of steepest ascent experiment.

No.	JKR	Wheat flour-wheat flour rolling friction coefficient	Wheat flour-stainless steel static friction coefficient	Mass flow rate (kg/s)	Relative error (%)
1	0.1	0.2	0.2	1.188	47.58
2	0.2	0.4	0.4	0.961	19.38
3	0.3	0.6	0.6	0.791	1.74
4	0.4	0.8	0.8	0.749	6.96
5	0.5	1.0	1.0	0.677	15.9