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A study of flow accelerated corrosion at elbow of carbon steel pipeline by array electrode and computational fluid dynamics simulation

机译:碳钢管道弯头流动加速腐蚀的阵列电极与流体动力学模拟研究

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摘要

A novel method by combining array electrode technique with computational fluid dynamics (CFD) simulation was proposed to determine the correlation between the corrosion behavior at the elbow of pipeline and the hydrodynamics of fluid flow. It is demonstrated that the distribution of the measured corrosion rates is in good accordance with the distributions of flow velocity and shear stress at the elbow. The corrosion rates at the inner wall of elbow are higher than those at the outer wall of elbow. The maximum corrosion rate appears at innermost side while the minimum corrosion rate at outermost side of the elbow.
机译:提出了一种将阵列电极技术与计算流体力学(CFD)仿真相结合的新方法,以确定管道弯头的腐蚀行为与流体流动的流体动力学之间的相关性。结果表明,测得的腐蚀速率分布与弯头处流速和切应力的分布非常吻合。肘部内壁的腐蚀速率高于肘部外壁的腐蚀速率。最大腐蚀速率出现在弯头的最内侧,最小腐蚀速率出现在弯头的最外侧。

著录项

  • 来源
    《Corrosion science》 |2013年第12期|334-341|共8页
  • 作者单位

    School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hubei Key Laboratory of Materials Chemistry and Service Failure, Wuhan 430074, China;

    School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hubei Key Laboratory of Materials Chemistry and Service Failure, Wuhan 430074, China;

    School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hubei Key Laboratory of Materials Chemistry and Service Failure, Wuhan 430074, China;

    School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hubei Key Laboratory of Materials Chemistry and Service Failure, Wuhan 430074, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Carbon steel; B. EIS; B. SEM; B. Raman spectroscopy; C. Acid corrosion;

    机译:A.碳钢;B.EIS;扫描电镜B.拉曼光谱;C.酸腐蚀;

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