Relating solute and gas dispersion in gravel at different transport velocities

L. Pugliese; T. G. Poulsen; S. Straface

doi:10.2495/MPF130281

Relating solute and gas dispersion in gravel at different transport velocities

L. Pugliese, T. G. Poulsen, S. Straface

Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Dispersion is a key process controlling transport of solutes and gases in porous media. Performing tracer tests for dispersion measurements with solutes is generally much more time consuming compared to used gases. The goal of this study is to estimate the solute dispersion based on gas dispersion measurements to reduce time consumption. Solute (chloride ion) breakthrough curves were measured at different fluid velocities, covering the identical Reynolds range used in a previous study on gas dispersion. Commercial gravel, consisting of solid particles, has been used as a porous medium. Chloride and oxygen dispersion coefficients were determined based on the measured breakthrough data and in turn used to calculate solute and gas dispersivities as a function of the particle size (Dm) and particle size range (R). Solute dispersivity increased with increasing particle size range, in agreement with the previous study. Data showed that dispersivity increases more gradually with decreasing mean diameter.

Original language	English
Title of host publication	Computational Methods in Multiphase Flow VII
Editors	Carlos A. Brebbia, Peter Vorobieff
Publisher	WITPress
Pages	339-350
Number of pages	12
ISBN (Electronic)	9781845647346
ISBN (Print)	9781845647346
DOIs	https://doi.org/10.2495/MPF130281
State	Published - 2013
Event	7th International Conference on Computational and Experimental Methods in Multiphase and Complex Flow, MPF 2013 - A Coruna, Spain Duration: 3 Jul 2013 → 5 Jul 2013

Publication series

Name	WIT Transactions on Engineering Sciences
Volume	79
ISSN (Print)	1743-3533

Conference

Conference	7th International Conference on Computational and Experimental Methods in Multiphase and Complex Flow, MPF 2013
Country	Spain
City	A Coruna
Period	3/07/13 → 5/07/13

Keywords

Dispersivity ratio
Gas dispersion
Particle size range
Porous medium
Reynolds number
Solute dispersion

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10.2495/MPF130281

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abstract = "Dispersion is a key process controlling transport of solutes and gases in porous media. Performing tracer tests for dispersion measurements with solutes is generally much more time consuming compared to used gases. The goal of this study is to estimate the solute dispersion based on gas dispersion measurements to reduce time consumption. Solute (chloride ion) breakthrough curves were measured at different fluid velocities, covering the identical Reynolds range used in a previous study on gas dispersion. Commercial gravel, consisting of solid particles, has been used as a porous medium. Chloride and oxygen dispersion coefficients were determined based on the measured breakthrough data and in turn used to calculate solute and gas dispersivities as a function of the particle size (Dm) and particle size range (R). Solute dispersivity increased with increasing particle size range, in agreement with the previous study. Data showed that dispersivity increases more gradually with decreasing mean diameter.",

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author = "L. Pugliese and Poulsen, {T. G.} and S. Straface",

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Pugliese, L, Poulsen, TG & Straface, S 2013, Relating solute and gas dispersion in gravel at different transport velocities. in CA Brebbia & P Vorobieff (eds), Computational Methods in Multiphase Flow VII. WIT Transactions on Engineering Sciences, vol. 79, WITPress, pp. 339-350, 7th International Conference on Computational and Experimental Methods in Multiphase and Complex Flow, MPF 2013, A Coruna, Spain, 3/07/13. https://doi.org/10.2495/MPF130281

Relating solute and gas dispersion in gravel at different transport velocities. / Pugliese, L.; Poulsen, T. G.; Straface, S.

Computational Methods in Multiphase Flow VII. ed. / Carlos A. Brebbia; Peter Vorobieff. WITPress, 2013. p. 339-350 (WIT Transactions on Engineering Sciences; Vol. 79).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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