Convection-dispersion-sorption equation CDSE

The above equations, based on the conservation of mass for chemical transport, yield the convection-dispersion-sorption equation CDSE (Eq. 3.41 and its variations), which is widely used in industrial applications, including dyeing. Many researchers call the term (D d ddx ) in Eq. 3.41b either dispersion or diffusion, and D is usually treated as a constant. In the context of this analysis, dispersion is used to describe this phenomenon, and the diffusion is considered a special case of dispersion when the velocity of the fluid is zero. 

One can use the above equation to discretise a partial difference equation (PDE) and implement a numerical method to solve the PDE. For example, if it is required to calculate numerical solutions of the convection-dispersion-sorption equation (CDSE, see Eq. 3.41b, also shown below) ... 

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See also in sourсe #XX -- [ , ]

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