A Meshless WCSPH Boundary Treatment for Open-Channel Flow over Small-Scale Rough Bed

Table 2

River sediment classification (cosmid and boulder sizes were not considered in this simulation).

Type	Cosmid	Silt	Sand	Gravel	Cobble	Boulder
Size (×10^−3 m)	<0.004	0.004∼0.062	0.062∼2.0	2.0∼16.0	16.0∼250.0	>250.0