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Modeling of abrasive particle trajectories during erosion by a slurry jet

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1016/0043-1648(93)90066-U
AuthorSearch for: 1; Search for:
Affiliation
  1. National Research Council Canada. NRC Industrial Materials Institute
FormatText, Article
Abstract
The aim of this study was to investigate the effect of fluid flow on the trajectories of abrasive particles near a specimen surface subjected to slurry erosion. In order to identify the different erosion mechanisms, it is necessary to know the impact parameters, such as the impact angle and the local velocity of the abrasive particle. An analysis based on potential and stream functions led to the determination of the velocity components of the fluid in the axisymmetrical jet (normal incidence). The boundary conditions corresponding to the free surface of the jet were included in the numerical resolution of the differential equations given by the inverse formulation of the fluid flow. From the velocity components of the fluid, it was possible to evaluate the viscous drag force on a particle and consequently the particle trajectories. The theoretical predictions show that the particle trajectories are, in some conditions, strongly deviated near the test surface. The observation of the eroded surfaces of the aluminum specimens was useful to verify the predictions that could be made from these particle trajectories. The observation pointed out the influence on particle trajectories of the abrasive particle size and the abrasive concentration in the slurry.
Publication date
PublisherElsevier
In
  • Wear 162-164: 679–687.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 33745
NRC-IMI92TC-21300-1304-G
NPARC number23004681
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Record identifiera0ba0c1f-f88d-4d11-8fca-a1f399742fa4
Record created2018-12-10
Record modified2020-04-24
Date modified: