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Numerical and experimental research on the erosion of solid-liquid two-phase flow in transport butterfly valve based on DEM method

Numerical and experimental research on the erosion of solid-liquid two-phase flow in transport... The purpose of this paper is to analyze the mechanism of particle erosion in butterfly valve pipelines under hydraulic transportation conditions. The results will affect the sealing and safety of butterfly valve pipelines and hopefully serve as reference for the anti-erosion design of butterfly valve pipelines.Design/methodology/approachThrough the discrete element method (DEM) simulation that considers the force between particles, the detached eddy simulation (DES) turbulence model based on realizable k-epsilon is used to simulate the solid-liquid two-phase flow-induced erosion condition when the butterfly valve is fully opened. The simulation is verified by building an experimental system correctness. The solid-liquid two-phase flow characteristics, particle distribution and erosion characteristics of the butterfly valve pipeline under transportation conditions are studied.FindingsThe addition of particles may enhance the high-speed area behind the valve. It first increases and then decreases with increasing particle size. With increasing particle size, the low-velocity particles change from being uniformly distributed in flow channel to first gathering in the front of the valve and, then, to gathering in lower part of it. Fluid stagnation at the left arc-shaped flange leads to the appearance of two high-speed belts in the channel. With increasing fluid velocity, high-speed belts gradually cover the entire valve surface by focusing on the upper and lower ends, resulting in the overall aggravation of erosion.Originality/valueConsidering the complexity of solid-liquid two-phase flow, this is the first time that the DEM method with added inter-particle forces and the DES turbulence model based on realizable k-epsilon has been used to study the flow characteristics and erosion mechanism of butterfly valves under fully open transportation conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Numerical and experimental research on the erosion of solid-liquid two-phase flow in transport butterfly valve based on DEM method

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0036-8792
DOI
10.1108/ilt-12-2020-0454
Publisher site
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Abstract

The purpose of this paper is to analyze the mechanism of particle erosion in butterfly valve pipelines under hydraulic transportation conditions. The results will affect the sealing and safety of butterfly valve pipelines and hopefully serve as reference for the anti-erosion design of butterfly valve pipelines.Design/methodology/approachThrough the discrete element method (DEM) simulation that considers the force between particles, the detached eddy simulation (DES) turbulence model based on realizable k-epsilon is used to simulate the solid-liquid two-phase flow-induced erosion condition when the butterfly valve is fully opened. The simulation is verified by building an experimental system correctness. The solid-liquid two-phase flow characteristics, particle distribution and erosion characteristics of the butterfly valve pipeline under transportation conditions are studied.FindingsThe addition of particles may enhance the high-speed area behind the valve. It first increases and then decreases with increasing particle size. With increasing particle size, the low-velocity particles change from being uniformly distributed in flow channel to first gathering in the front of the valve and, then, to gathering in lower part of it. Fluid stagnation at the left arc-shaped flange leads to the appearance of two high-speed belts in the channel. With increasing fluid velocity, high-speed belts gradually cover the entire valve surface by focusing on the upper and lower ends, resulting in the overall aggravation of erosion.Originality/valueConsidering the complexity of solid-liquid two-phase flow, this is the first time that the DEM method with added inter-particle forces and the DES turbulence model based on realizable k-epsilon has been used to study the flow characteristics and erosion mechanism of butterfly valves under fully open transportation conditions.

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: Jun 2, 2021

Keywords: Erosion; DES; Butterfly valve; CFD-DEM; Solid-liquid two-phase flow

References

  • Experimental investigation of solid particle erosion in successive elbows in gas dominated flows
    Asgharpour, A.; Zahedi, P.; Khanouki, H.A.; Shirazi, S.A.; Mclaury, B.S.
  • A study of erosion phenomena part I
    Bitter, J.G.A.
  • Numerical analysis of cavitation erosion and particle erosion in butterfly valve
    Bo, L.; Zhao, J.; Qian, J.
  • The mechanism of erosion of ductile metals. Proceeding of the 3rd US national congress of applied mechanics
    Finnie, I.
  • Erosion prediction in turbomachinery resulting from environmental solid particles
    Grant, G.; Tabakoff, W.
  • Fluidization characteristics of particles in a groove induced by horizontal air flow
    Lin, Z.; Liu, Z.; Liu, Q.; Li, Y.
  • Gas–solid two-phase flow and erosion calculation of gate valve based on the CFD-DEM model
    Lin, Z.; Sun, X.; Yu, T.; Zhang, Y.; Li, Y.; Zhu, Z.
  • Erosion behavior and influence of solid particles in hydraulic spool valve without notches
    Liu, X.; Ji, H.; Min, W.; Zheng, Z.; Wang, J.
  • Predicting solid particle erosion resulting from turbulent fluctuations in oilfield geometries
    Mclaury, B.
  • An investigation of particle trajectories in two-phase flow systems
    Morsi, S.A.J.; Alexander, A.J.
  • Numerical simulation of solid particle erosion in pipe bends for liquid–solid flow
    Peng, W.; Cao, X.
  • CFD modelling of the influence of particle loading on erosion using dense discrete particle model
    Pouraria, H.; Darihaki, F.; Park, K.H.; Shirazi, S.A.; Seo, Y.
  • Effects of particle impingement angle and surface wetting on solid particle erosion of AISI 1018 steel
    Raymond, A.,K.
  • Experiments and CFD simulations of erosion of a 90° elbow in liquid-dominated liquid-solid and dispersed-bubble-solid flows
    Sedrez, T.A.; Shirazi, S.A.; Rajkumar, Y.R.; Sambath, K.; Subramani, H.J.
  • Erosion studies of cermet-coated ASTM A36 steel
    Shibe, V.; Chawla, V.
  • A new k-ϵ eddy viscosity model for high reynolds number turbulent flows
    Shih, T.-H.; Liou, W.W.; Shabbir, A.; Yang, Z.; Zhu, J.
  • Detached-eddy simulation of an airfoil at high angle of attack
    Shur, M.; Spalart, P.; Strelets, M.; Travin, A.
  • Erosion study of different materials affected by coal ash particles
    Tabakoff, W.; Kotwal, R.; Hamed, A.
  • Comparison of computed and measured particle velocities and erosion in water and air flows
    Zhang, Y.; Reuterfors, E.P.; McLaury, B.S.; Shirazi, S.A.; Rybicki, E.F.