Laminar dispersion in parallel plate sections of flow systems used in analytical chemistry and chemical engineering
نویسندگان
چکیده
An exact solution of the convective-dlffuslon equation for fully developed parallel plate lammar flow was obtamed It allows the denvatlon of theoretical relatlonshps for calculating the Peclet number m the axmlly dispersed plug flow model and the concentration dlstrlbutlon perpendicular to the direction of the flow, provided that the correspondmg solution of this model IS known. The convective-diffusion equation was solved numencally using the lmphclt altematmg-direction fmlte difference method It was found that the theory developed 1s valid for Founer numbers greater than 1.0. The results obtained can be used for the mathematical modelhng of parallel plate process heat and mass exchangers, haemodlalysers and flow-injection and contmuous-flow mamfolds with on-line dlalysls umts wth parallel plate geometry.
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