Electric Field Calculation of Pipe with Cathodic Protection in Seawater by BEM

Abstract:

To investigate the corrosion state of subsea pipeline under cathodic protection, the surface potential distribution of the pipeline has to be measured exactly, but it’s very difficult to measure directly in actually. On base of boundary element methods (BEM), a 2D model about pipe’s cathodic protection under sea water was established, and then software to calculate the electric field distribution on pipe surface in even media (seawater) was developed by way of Matlab. The developed software was verified through an experiment in lab. The result shows that numerical calculation based on BEM by Matlab is feasible for cathodic protection electric field of pipe in marine environment.

• Periodical: Applied Mechanics and Materials (Volume 621)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.621.230
• Online since: August 2014
• Authors: Jian Hong Tan, Shi Qin Wang, Sheng Tao Zhang, Bin Xiang, Guo Qing Zhang*
• Keywords: BEM, Corrosion, MATLAB, Potential Distribution

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