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On boundary elements for simulation of cathodic protection systems with dynamic polarization curves. (English) Zbl 0887.65126
The evolution of current density and potential distributions that appear when cathodic protection systems are employed to prevent corrosion of metallic structures in contact with an electrolyte is governed by the Laplace or Poisson equation subjected to nonlinear time-varying boundary conditions, described by polarization curves. The authors compute the corrosion rate at any point on a metal surface submerged (pipelines and offshore structures) starting from data obtained in-situ measurements carried out in a bay of Rio de Janeiro.

MSC:
65Z05 Applications to the sciences
35Q60 PDEs in connection with optics and electromagnetic theory
65M70 Spectral, collocation and related methods for initial value and initial-boundary value problems involving PDEs
78A55 Technical applications of optics and electromagnetic theory
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