NA-05 - Cleaning: Solids in Drain and Sewer Systems (Demo)

Transport behaviour of solids

Transport behaviour of solids (3)

The settling velocity can be described by the Stokes equation of motion for spherical particles. Since the particle differs from a generally spherical shape, the particle diameter used is taken from a sphere with a similar volume [Kalbs97] [Hörni1989] [SteinR2005].

Equation 4:

vs = settling velocity [m/s]
g = gravitational acceleration [m/s2]
ρ = particle density [kg/m3]
ρW = density of the liquid [kg/m3]
v = kinematic viscosity [m²/s]
dK = Particle diameter [m]

 

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