CMS-Flow:Sediment Fall Velocity

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Sediment Fall Velocity

The sediment fall velocity may be user-specified or is calculated using the formula by Soulsby (1997):

  (1)

where:

v = kinematic viscosity [m2/s]

d = grain size [m]

d* = dimensionless grain size [-].


The dimensionless grain size is given by

  (2)

where:

s = sediment specific gravity or relative density [-]

g = gravitational constant (9.81 m/s2).