Research Article
Calibration of Discrete Element Simulation Parameters for Powder Screw Conveying
Table 6
Design and results of Box-Behnken experiment.
| | Running serial number | Wheat flour-wheat static friction coefficient (H) | Coefficient of static friction of wheat flour-stainless steel (J) | JKR (K) | Mass flow rate (kg/s) |
| | 1 | 0 | 0 | 0 | 0.7991 | | 2 | 0 | 0 | 0 | 0.805 | | 3 | −1 | 0 | −1 | 0.8381 | | 4 | 0 | −1 | −1 | 0.9718 | | 5 | 1 | 0 | −1 | 0.7952 | | 6 | 0 | 1 | 1 | 0.753 | | 7 | 0 | −1 | 1 | 0.9404 | | 8 | −1 | −1 | 0 | 0.9475 | | 9 | 0 | 1 | −1 | 0.7903 | | 10 | 0 | 0 | 0 | 0.803 | | 11 | 1 | 1 | 0 | 0.7162 | | 12 | −1 | 1 | 0 | 0.7925 | | 13 | 1 | −1 | 0 | 0.8655 | | 14 | −1 | 0 | 1 | 0.8006 | | 15 | 1 | 0 | 1 | 0.7648 |
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