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Schmidt number is a dimensionless number defined as the ratio of momentum diffusivity (viscosity) and mass diffusivity, and is used to characterize fluid flows in which there are simultaneous momentum and mass diffusion convection processes. It was named after Ernst Schmidt.
Additional recommended knowledge
Schmidt number is the ratio of the shear component for diffusivity viscosity/density to the diffusivity for mass transfer D. It physically relates the relative thickness of the hydrodynamic layer and mass-transfer boundary layer.
It is defined  as:
The heat transfer analog of the Schmidt number is the Prandtl number.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Schmidt_number". A list of authors is available in Wikipedia.|