# Difference between revisions of "CMS-Flow:Sediment Fall Velocity"

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g = gravitational constant (9.81 m/s<sup>2</sup>). | g = gravitational constant (9.81 m/s<sup>2</sup>). | ||

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+ | = References = | ||

+ | *Soulsby, R. L. 1997. Dynamics of marine sands. London, England: Thomas Telford Publications. |

## Revision as of 21:03, 14 January 2015

# 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 [m^{2}/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/s^{2}).

# References

- Soulsby, R. L. 1997. Dynamics of marine sands. London, England: Thomas Telford Publications.