The influence of gravity on granular impacts - I. A DEM code performance comparison

Open Access

Table 2

Angle of repose measurements in pkdgrav for different combinations of μ_r and β when μ_s = 1.0 and μ_t = 1.3.

μ_r	β	Angle of repose
0.50	0.1	23.2

0.75	0.1	24.1

1.05	0.025	20.6
	0.050	22.1
	0.075	23.5
	0.1	24.7
	0.2	28.4
	0.3	30.8

2.0	0.1	26.2
	0.2	30.6
	0.3	33.2

Notes. μ_s is the sliding coefficient of friction, μ_t is the twisting coefficient offriction, μ_r is the rolling friction coefficient, and β is the particle shape parameter.

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