Taylor dispersion is enhanced longitudinal spreading produced when transverse molecular diffusion repeatedly moves solute between streamlines of different velocity.
Taylor dispersion refers to the phenomenon where the dispersion of a solute in a fluid flow is enhanced due to the combined effects of advection (the transport of a substance by bulk motion of the fluid) and diffusion (the spread of particles from areas of high concentration to areas of low concentration). It is named after the mathematician G.I. Taylor, who studied this effect in the context of fluid dynamics.
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