6.2 Size Effects
409
Fig. 6.8 Configuration of the two-region pebble bed
Table 6.1 Geometrical and physical parameters for simulation
Parameters (unit)
Value
Bed height, H (m)
1.0
Bed width, W (m)
0.8
Bed thickness, δ (mm)
60.0
Bottom width, L 3 (m)
0.12
Slope angle, θ ( ◦ C)
45
Particle density, ρ (kg/m 3 )
2500
Young’s modulus, E (MPa)
2.16
Poisson ratio, ν
0.3
Restitution coefficient e
0.3
Friction coefficient, μ f
0.3
Rolling friction coefficient, μ r
0
Time step, t (µs)
10
409
Fig. 6.8 Configuration of the two-region pebble bed
Table 6.1 Geometrical and physical parameters for simulation
Parameters (unit)
Value
Bed height, H (m)
1.0
Bed width, W (m)
0.8
Bed thickness, δ (mm)
60.0
Bottom width, L 3 (m)
0.12
Slope angle, θ ( ◦ C)
45
Particle density, ρ (kg/m 3 )
2500
Young’s modulus, E (MPa)
2.16
Poisson ratio, ν
0.3
Restitution coefficient e
0.3
Friction coefficient, μ f
0.3
Rolling friction coefficient, μ r
0
Time step, t (µs)
10