電気防食下における電位分布の数値解析 : その2 3次元有限要素法の適用

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書誌事項

タイトル別名
  • Numerical Analysis of Potential Distribution in Electrolyte under Cathodic Protection : Part 2 Application of Three-dimensional Finite Element Method
  • 電気防食下における電位分布の数値解析-2-3次元有限要素法の適用
  • デンキ ボウショクカ ニ オケル デンイ ブンプ ノ スウチ カイセキ 2 3

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抄録

In order to establish a rational planning for the cathodic protection, the three-dimensional finite element method was applied to the analysis of potential distribution in electrolyte. Since Dirichlet's condition are not given in this potential problem, the balance of anticorrosion current between electrodes was introduced to the analysis instead of the above condition. The potential distribution can be determined by the numerical analysis without any iterative technique under the linear polarization characteristics of electrodes. Although practical polarization characteristics are nonlinear, the present method can be applied to practical problems by means of linearization of polarization characteristics in several ranges of potential. The potential distribution of galvanic cell with 3% NaCl solution saturated by oxgen was analysed by the above method and was measured to make a comparison with experimental results. The numerical solution of the potential distribution was in good agreement with measured values.

収録刊行物

  • 西部造船会々報

    西部造船会々報 73 (0), 114-121, 1987

    社団法人 日本船舶海洋工学会

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