Research Article

Coupled DEM-SPH Method for Interaction between Dilated Polyhedral Particles and Fluid

Table 2

Simulation parameters of impact of falling rocks on underwater pipeline.

ParameterValue

Water tank: length × width × height11.2 m × 6 m × 2 m
Diameter of pipeline0.508 m
Cube length0.15 m
Density of cube3000 kg/m3
Elastic modulus of cube4.76 GPa
Poisson’s ratio of cube0.3
Number of cubes600
Density of sea water1035 kg/m3
Height of sea water1.1 m
Smoothing length0.05 m
Number of SPH particles560 000