한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제31권1호
  • /
  • Pages.14-21
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  • 2017
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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유체-입자 연성 운동에 의한 굽힘형 배관의 침식률 수치해석

Numerical Simulation of Erosion Rate on Pipe Elbow Using Coupled Behavior of Fluid and Particle

  • 장호상 (인하대학교 대학원 조선해양공학과) ;
  • 이하원 (인하대학교 대학원 조선해양공학과) ;
  • 황세윤 (인하대학교 공과대학 산업과학기술연구소) ;
  • 이장현 (인하대학교 조선해양공학과)
  • Jang, Ho-Sang (Department of Naval Architecture & Ocean Engineering, Graduate School, Inha University) ;
  • Lee, Hawon (Department of Naval Architecture & Ocean Engineering, Graduate School, Inha University) ;
  • Hwang, Se-Yun (Research Institute of Industrial Science and Technology, Inha University) ;
  • Lee, Jang-Hyun (Department of Naval Architecture & Ocean Engineering, Inha University)
  • 투고 : 2016.06.29
  • 심사 : 2017.02.10
  • 발행 : 2017.02.28
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초록

The erosion of solid particles in a pipe elbow was numerically investigated. A numerical procedure to estimate the sand erosion rate, as well as the particle motion, in the pipe elbow flow was introduced. This procedure was performed based on the combined empirical erosion model and computational fluid dynamics (CFD) analysis to consider the interaction between the particle motion and the eroded surface. The underlying turbulent flow on an Eulerian frame is described by the Reynolds averaged Navier-Stokes (RANS) equations with a $k-{\epsilon}$ turbulent model. The one-way coupled Eulerian-Lagrangian motion of the air flow and sand particles is employed to simulate the particle trajectories and particle-wall interactions on the pipe surfaces. The predicted CFD erosion magnitudes are compared with experimental data from pipe elbows. The erosion rate results do not reveal a good accordance between the simulation and experimental results. It seems that the CFD shows a slightly over-predicted erosion ratio.

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참고문헌

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