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Title

Solute Dispersion in Flow through Saturated Porous Media

Year: 1386
COI: ICHEC05_348
Language: EnglishView: 1,165
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Authors

Mohammad Hossein Ghazanfari - ۱Chemical and Petroleum Engineering Department, Sharif University of Technology, Tehran, Iran, Petroleum Research Center, Petroleum University of Technology, Tehran, Iran
Davood Rashtchian - Chemical and Petroleum Engineering Department, Sharif University of Technology, Tehran, Iran
Riyaz Kharrat - Petroleum Research Center, Petroleum University of Technology, Tehran, Iran
Shahpour Vossoughi - Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS, U.S.A

Abstract:

Dispersion in porous media arises from the chaotic nature of pore level velocity field forced on the flowing fluid by the irregularity of the pore space. In this work, a sandstone pattern etched on glass is considered as porous medium. Visualization of solute dispersion experiments performed on porous model that is initially saturated with the water at varying values of flow rate. The accurate measurements of temporal variation of the solute concentration over various regions of porous models were provided by image analysis of color intensity of continuously provided pictures. The inverse modeling of the convection-diffusion equation is applied and the longitude and transverse dispersion coefficients are determined using a suitable optimization algorithm as a function of flow rate. The results show that at low velocity the order of magnitude of longitude and transverse dispersion coefficients are the same, while at the high velocity they are not. The measured dispersion coefficients values are within the range of experimental data available for different porous media. This study illustrates the successful application of micromodel as a quantitative tool for studying dispersion phenomena in sandstone porous model.

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Paper COI Code

This Paper COI Code is ICHEC05_348. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/46198/

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Ghazanfari, Mohammad Hossein and Rashtchian, Davood and Kharrat, Riyaz and Vossoughi, Shahpour,1386,Solute Dispersion in Flow through Saturated Porous Media,5th International Congress on Chemical Engineering,Kish Island,https://civilica.com/doc/46198

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