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Concentration Distribution of Chloride Ion under the Influence of the Convection-Diffusion Coupling
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-22
Country of Publication
Egypt
No. of Pages
10
Abstract EN
The transfer process of chloride ion under the action of the convection-diffusion coupling was analyzed in order to predict the corrosion of reinforcement and the durability of structure more accurately.
Considering the time-varying properties of diffusion coefficient and the space-time effect of the convection velocity, the differential equation for chloride ion transfer under the action of the convection-diffusion coupling was constructed.
And then the chloride ion transfer model was validated by the existing experimental datum and the actual project datum.
The results showed that when only diffusion was considered, the chlorine ion concentration increased with the time and decreased with the decay index of time.
Under the action of the convection-diffusion coupling, at each point of coupling region, the chloride ion concentration first increased and then decreased and tended to stabilize, and the maximum appeared at the moment of convection velocity being 0; in the diffusion zone, the chloride ion concentration increased over time, and the chloride ion concentration of the same location increased with the depth of convection (in the later period), the velocity of convection (in the early period), and the chloride ion concentration of the surface.
American Psychological Association (APA)
Zhao, Q. L.& Zhang, Ying-zi. 2017. Concentration Distribution of Chloride Ion under the Influence of the Convection-Diffusion Coupling. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1123660
Modern Language Association (MLA)
Zhao, Q. L.& Zhang, Ying-zi. Concentration Distribution of Chloride Ion under the Influence of the Convection-Diffusion Coupling. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1123660
American Medical Association (AMA)
Zhao, Q. L.& Zhang, Ying-zi. Concentration Distribution of Chloride Ion under the Influence of the Convection-Diffusion Coupling. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1123660
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123660