Analysis of Flow on Grooving Corrosion at the Weld of a Carbon Steel pipe made by Electrical Resistance Welding

전기저항 용접강관의 홈부식에 미치는 유동 해석

  • 김용 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 장혁 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 류덕희 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 김재성 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 이보영 (한국항공대학교 항공우주 및 기계공학부) ;
  • 부준홍 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2004.11.03

Abstract

Lots of researches were gone already about grooving corrosion mechanism of ERW carbon steel pipe. But there is seldom study for water hammer happened by fluid and acceleration of corrosion rate by incresed flow velocity. Therefore, in this study carried out the analysis based on hydrodynamic and fracture mechanics. Analyzed stress that act on a pipe using ANSYS as a program, and also FLUENT and STAR-CD were used for flow phenomenon confirmation. As the result, fatigue failure is happened by water hammer and corrosion rate was increased because of turbulent flow.

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