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Dispersion in Laminar Flow Through a Circular Tube

B. Andersson and T. Berglin
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 377, No. 1770 (Jul. 8, 1981), pp. 251-268
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/2397185
Page Count: 18
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Dispersion in Laminar Flow Through a Circular Tube
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Abstract

Dispersion in laminar flow was studied by a method proposed by Aris based on the use of moments. The first four moments for different types of pulses are calculated in the present paper. The solution was applied to the determination of the diffusivities of hydrogen and nitrobenzoic acid in water, and the results obtained are compared with those found by Taylor's method of analysis. Some criteria for reliable determination of diffusion coefficients are given. The experiments were performed in coiled tubes, and the influence of the curvature of the tube is discussed

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