Abstract
The disruption of corrosion films formed on copper in flowing aerated 3% NaCl solution has been studied in a flow cell with a rectangular cross section, 50 mm wide x 15 mm. The 140 mm long copper deck and the symmetrical acrylic cover had backward and forward facing 2 mm steps to form a constriction resulting in disturbed flow at the leading edge of the sudden constriction and the sudden expansion. The velocity range based on the unconstricted cross section of the flow cell was 0.3-1.5 m s-1. The development and destruction of the corrosion product films were observed through the transparent cell top. The resulting interactions between the disturbed flow and the films are discussed in terms of the near-wall turbulence parameter profiles, along the length of the flow ceil, calculated by the application of a 2-equation turbulence model with low Reynolds number closure.
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© 1994 Springer Science+Business Media Dordrecht
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Postlethwaite, J., Wang, Y., Adamopoulos, G., Nesic, S. (1994). Relationship Between Modelled Turbulence Parameters and Corrosion Product Film Stability in Disturbed Single-Phase Aqueous Flow. In: Trethewey, K.R., Roberge, P.R. (eds) Modelling Aqueous Corrosion. NATO ASI Series, vol 266. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1176-8_14
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DOI: https://doi.org/10.1007/978-94-011-1176-8_14
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