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- Sherwood_number abstract "The Sherwood number (Sh) (also called the mass transfer Nusselt number) is a dimensionless number used in mass-transfer operation. It represents the ratio of convective to diffusive mass transport, and is named in honor of Thomas Kilgore Sherwood.It is defined as followswhere L is a characteristic length (m) D is mass diffusivity (m2.s−1) K is the mass transfer coefficient (m.s−1)Using dimensional analysis, it can also be further defined as a function of the Reynolds and Schmidt numbers: For example, for a single sphere it can be expressed as:where is the Sherwood number due only to natural convection and not forced convection.A more specific correlation, the Froessling equation:This form is particularly valuable to chemical engineers in situations where the Reynolds number and Schmidt number are readily available. Since Re and Sc are both dimensionless numbers, the Sherwood number is also dimensionless.These correlations are the mass transfer analogs to heat transfer correlations of the Nusselt number in terms of the Reynolds number and Prandtl number. For a correlation for a given geometry (e.g. spheres, plates, cylinders, etc.), a heat transfer correlation (often more readily available from literature and experimental work, and easier to determine) for the Nusselt number (Nu) in terms of the Reynolds number (Re) and the Prandtl number (Pr) can be used as a mass transfer correlation by replacing the Prandtl number with the analogous dimensionless number for mass transfer, the Schmidt number, and replacing the Nusselt number with the analogous dimensionless number for mass transfer, the Sherwood number.As an example, a heat transfer correlation for spheres is given by the Ranz-Marshall Correlation:This correlation can be made into a mass transfer correlation using the above procedure, which yields:This is a very concrete way of demonstrating the analogies between different forms of transport phenomena.".
- Sherwood_number wikiPageID "341370".
- Sherwood_number wikiPageRevisionID "602448495".
- Sherwood_number hasPhotoCollection Sherwood_number.
- Sherwood_number subject Category:Dimensionless_numbers.
- Sherwood_number subject Category:Dimensionless_numbers_of_fluid_mechanics.
- Sherwood_number type Abstraction100002137.
- Sherwood_number type Amount105107765.
- Sherwood_number type Attribute100024264.
- Sherwood_number type DimensionlessNumbers.
- Sherwood_number type Magnitude105090441.
- Sherwood_number type Number105121418.
- Sherwood_number type Property104916342.
- Sherwood_number comment "The Sherwood number (Sh) (also called the mass transfer Nusselt number) is a dimensionless number used in mass-transfer operation.".
- Sherwood_number label "Getal van Sherwood".
- Sherwood_number label "Liczba Sherwooda".
- Sherwood_number label "Nombre de Sherwood".
- Sherwood_number label "Numero di Sherwood".
- Sherwood_number label "Número de Sherwood".
- Sherwood_number label "Número de Sherwood".
- Sherwood_number label "Sherwood number".
- Sherwood_number label "Sherwood-Zahl".
- Sherwood_number label "Число Шервуда".
- Sherwood_number label "シャーウッド数".
- Sherwood_number label "舍伍德数".
- Sherwood_number sameAs Sherwood-Zahl.
- Sherwood_number sameAs Número_de_Sherwood.
- Sherwood_number sameAs Nombre_de_Sherwood.
- Sherwood_number sameAs Numero_di_Sherwood.
- Sherwood_number sameAs シャーウッド数.
- Sherwood_number sameAs Getal_van_Sherwood.
- Sherwood_number sameAs Liczba_Sherwooda.
- Sherwood_number sameAs Número_de_Sherwood.
- Sherwood_number sameAs m.01y3r9.
- Sherwood_number sameAs Q901815.
- Sherwood_number sameAs Q901815.
- Sherwood_number sameAs Sherwood_number.
- Sherwood_number wasDerivedFrom Sherwood_number?oldid=602448495.
- Sherwood_number isPrimaryTopicOf Sherwood_number.