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 Analysis of Orlando Easterly Wetland
TL;DR: In this paper, bromide tracer tests revealed and quantified inefficiencies (short circuiting and dead zones) in the hydraulic performance within individual treatment cells and the wetland system under the operating conditions studied.
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Residence time distributions for hydrologic systems: Mechanistic foundations and steady-state analytical solutions
TL;DR: In this article, the physical mechanisms for generating residence time distributions (RTDs) in hydrologic systems with a focus on steady-state analytical solutions are presented, as well as the conditions for appropriate use of analytical solutions.
Journal ArticleDOI
Numerical study of liquid-liquid mixing in helical pipes
Michael Mansour,Zhixin Liu,Gábor Janiga,Krishna D.P. Nigam,Kai Sundmacher,Kai Sundmacher,Dominique Thévenin,Katharina Zähringer +7 more
TL;DR: In this article, the authors investigated the optimal mixing behavior as a function of different parameters for a wide range of relevant Schmidt and Reynolds numbers for laminar flow conditions and found that the Reynolds number has a more complex impact on mixing efficiency than Schmidt number.
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Axial dispersion in metal foams and streamwise-periodic porous media
TL;DR: In this paper, the axial dispersion coefficients of metal foams and laser sintered reactors were compared in terms of axial dispersions and pressure drops, and the results showed the high potential of foam reactors for catalyst driven reactions.
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Application of Second‐Type Boundaries in Unsaturated Flow Modeling
TL;DR: In this article, the authors identify physical scenarios in which a second-type boundary (specified gradient) may be the most appropriate boundary condition, discusses a procedure for implementing a specified gradient boundary condition in a flow code, and presents an application of the procedure in the simulation of two practical problems.
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.