Calibration of Discrete Element Simulation Parameters for Powder Screw Conveying

Table 1

Parameters required in DEM simulation.

Simulation parameters	Value
Density of wheat flour/(kg·m^−3)	1320
Poisson’s ratio of wheat flour	0.2–0.4
Shear modulus of wheat/Pa	1.1 × 107–6 × 107
Density of stainless steel/(kg·m^−3)	7800
Poisson’s ratio of stainless steel	0.3
Shear modulus of stainless steel/Pa	7 × 1010
Wheat flour-wheat flour restitution coefficient	0.15–0.55
Wheat flour-wheat flour static friction coefficient	0.2–0.8
Wheat flour-wheat flour rolling friction coefficient	0.05–0.25
Wheat flour-stainless steel restitution coefficient	0.15–0.55
Wheat flour-stainless steel static friction coefficient	0.2–1.0
Wheat flour-stainless steel rolling friction coefficient	0.1–0.8
JKR	0.1–0.5