Sediment-Pickup Function
A function expressing the rate of removal of bed is presented in terms of the following variables: local velocity; coefficient of drag; particle diameter; bed slope; angle of repose; and...

A Theory for Heterogeneous Flow of Solids in Pipes
A theory for the flow of heterogeneous mixtures (particulate solids which settle in the fluid carrier) is derived assuming that the existence of bed deposits is the principal cause of...

Flow in Sludge - Blanket Clarifiers
Laboratory tests prove that fluidized floc beds behave in accordance with the general equation of fluidization. The Increase of viscosity decreases the output of the clarifier during low...

Bed Forms Due to a Fluid Stream
A general investigation of the occurrence of bed forms is reported. A relationship is determined for finding the point at which ripples would replace the flat bed. From the Bagnold number,...

Resistance to Laminar Flow Through Porous Media
The equations for laminar flow through porous media for the linear and nonlinear regimes, are derived from a consideration of the hydrodynamic drag forces on individual particles. The...

 

 

 

 

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