Table 1 The main hydraulic parameters of the model

E

0.3 m²/s

Eddy viscosity coefficient

n

0.025

Manning’s coefficient

µ

0.7

Dynamic coefficient of friction

υ

10⁻⁶ m²/s

Kinematic viscosity coefficient

S_h

0.7

River morphology coefficient

φ

0.2 m

Drying depth

d₅₀

0.035 mm

Median grain diameter of D₅₀

d₉₀

1.23 mm

Median grain diameter of D₉₀

p

0.4

Porosity