Table 8 Factors of the prediction model equations of the AoR and the ε for the free-flowing and cohesive powders

From: A multivariate regression parametric study on DEM input parameters of free-flowing and cohesive powders with experimental data-based validation

Variable Factors of AoR (free-flowing) Factors of ε (free-flowing) Factors of AoR (cohesive) Factors of ε (cohesive)
\( \lambda \) 6.7266 37.9127 202.481 73.8381
\( \lambda_{1} \) − 5.9508 0.0041 30.4258 8.1474
\( \lambda_{2} \) 87.8684 0.2037 − 34.8184 17.7210
\( \lambda_{3} \) 6.0857 0.4985 13.1172 − 0.5760
\( \lambda_{4} \) 15.6309 16.2729 − 43.4370 − 7.4100
\( \lambda_{5} \) − 11.8716 5.3753 0.0010 0.0058
\( \lambda_{6} \) 39.7847 7.38747 4.9399 0.0001
\( \lambda_{7} \) − 83.8815 − 2.6774 − 7.1505e−05 7.5073
\( \lambda_{8} \) − 36.3797 − 3.4024 − 17.5265 − 2.4609
\( \lambda_{9} \) − 5.6972 − 30.8083 − 1.5762
\( \lambda_{10} \) − 11.4497 2.4489 − 0.4159
\( \lambda_{11} \) − 4.4295e−09 − 8.7405e−06
\( \lambda_{12} \) − 5.2809e−08
\( \lambda_{13} \) − 9.3584
\( \lambda_{14} \) − 10.4861
\( \lambda_{15} \) 0.4565