Migration Characteristics and Restoration Mechanism of Grout Containing Aggregate in Overburden Fractures Based on CFD-DEM Coupling Model

Table 1

Numerical simulation parameters.

Velocity of fluid, (m/s)	Size of aggregate particle, (mm)	Density of aggregate, (kg/m^3)
0.8	3	3500
0.8	3	3750
0.8	3	4000
0.8	4	3500
0.8	4	3750
0.8	4	4000