Journal ArticleDOI
Continuous flow systems. Distribution of residence times
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TLDR
In this article, the authors proposed a method to predict the distribution of residence-times in large systems by using distribution-functions for residencetimes, which can be used to calculate the etficiencies of reactors and blenders.About:
This article is published in Chemical Engineering Science.The article was published on 1995-12-01. It has received 1416 citations till now. The article focuses on the topics: Residence time distribution & Perfect mixing.read more
Citations
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Hydraulic modeling and axial dispersion analysis of UASB reactor
TL;DR: In this article, the axial distribution of a conservative tracer in the upflow anaerobic sludge bed (UASB) reactor was modelled by a two-compartment model describing sludge beds and liquid zones.
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Modelling Dermal Drug Distribution After Topical Application in Human
TL;DR: A new physiological pharmacokinetic model is created to describe the effect of blood flow, blood protein binding and dermal binding on the rate and depth of penetration of topical drugs into the underlying skin and shows that dermal diffusion alone cannot explain the in vivo data.
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Boundary effects on solute transport in finite soil columns
TL;DR: In this paper, the influence of inlet and outlet disturbances and formulated boundary conditions on the estimation of the dispersion coefficient and retardation factor for short soil columns were investigated and two-layer analytical solutions of the advectivedispersive equation were fitted to effluent concentrations using nonlinear least squares parameter optimization.
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Spatial distributions of mean age and higher moments in steady continuous flows
M. Liu,J.N. Tilton +1 more
TL;DR: In this article, the authors derived transport equations and boundary conditions for spatial distribution of age moments in steady continuous flows and compared them with those from a transient tracer equation, finding that mean age is located on the long tail for both convection dominated short circuiting paths and diffusion dominated dead zones.
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Groundwater age, life expectancy and transit time distributions in advective-dispersive systems; 2. Reservoir theory for sub-drainage basins
Fabien Cornaton,Pierre Perrochet +1 more
TL;DR: In this paper, the authors extend the applicability of the reservoir theory to sub-drainage basins of groundwater reservoirs by treating the reservoir flow systems as compartments which transfer the water fluxes to a particular discharge zone, and inside which mixing and dispersion processes can take place.
References
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Mathematics of Adsorption in Beds. VI. The Effect of Longitudinal Diffusion in Ion Exchange and Chromatographic Columns
Leon Lapidus,Neal R. Amundson +1 more
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The Definition and Measurement of Some Characteristics of Mixtures
TL;DR: In this paper, it is shown that the important features of such mixtures can be expressed by two statistically defined quantities, the scale and the intensity of segregation, and methods of measuring these are suggested.