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http://dx.doi.org/10.5574/KSOE.2017.31.1.014

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

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)
Publication Information
Journal of Ocean Engineering and Technology / v.31, no.1, 2017 , pp. 14-21 More about this Journal
Abstract
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.
Keywords
Pipe erosion; Solid particle erosion; Erosion rate; CFD; Eulerian-Lagrangian coupling;
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