The Rouse number (P or Z) is a non-dimensional number in fluid dynamics which is used to define a concentration profile of suspended sediment and which also determines how sediment will be transported in a flowing fluid. It is a ratio between the sediment fall velocity and the upwards velocity on the grain as a product of the von Kármán constant and the shear velocity .
Occasionally the factor β is included before the von Kármán constant in the equation, which is a constant which correlates eddy viscosity to eddy diffusivity.
This is generally taken to be equal to 1, and therefore is ignored in actual calculation. However, it should not be ignored when considering the full equation.
It is named after the American fluid dynamicist Hunter Rouse. It is a characteristic scale parameter in the Rouse Profile of suspended sediment concentration with depth in a flowing fluid. The concentration of suspended sediment with depth goes as the power of the negative Rouse number. It also is used to determine how the particles will move in the fluid. The required Rouse numbers for transport as bed load, suspended load, and wash load, are given below.
The Rousenumber (P or Z) is a non-dimensional number in fluid dynamics which is used to define a concentration profile of suspended sediment and which...
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93 to 1.10 for sands and silts. The Rouse profile characterizes sediment concentrations because the Rousenumber includes both turbulent mixing and settling...
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mean flow velocity of the stream, with a Rousenumber between 0.8 and 1.2. The rates within the Rousenumber reveal how at which the sediment will transport...
following table for the Rousenumber, which is a ratio of sediment settling velocity (fall velocity) to upwards velocity. Rouse = Settling velocity Upwards...
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and most specifically, dry fly fishing. The chalk streams hold a good number of wild salmonid fish species such as the brown trout (Salmo trutta), and...
Main stem Playfair's law Relief ratio River Continuum Concept Rousenumber Runoff curve number Runoff model (reservoir) Stream gauge Universal Soil Loss Equation...
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Richardson number Archived 2015-03-02 at the Wayback Machine Schmidt number Archived 2010-01-24 at the Wayback Machine Sommerfeld number Strouhal number, Engineering...
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increased suspended load may be visible, giving the stream a muddy color. Rousenumber Sediment Sediment transport Wash load Knighton, David. (1998). Fluvial...
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leaving only Rouse and cameraman Jim Curran on the mountain. Curran returned to Base Camp, but Rouse chose to continue his summit bid. Rouse's expedition...
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were mentioned by W. W. Rouse Ball in his Mathematical Recreations. In A Mathematician's Apology, G. H. Hardy criticized Rouse Ball for including this...
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