0
RESEARCH PAPERS: Papers on Production Engineering

Erosion of a Pipe Bend by Solid Particles Entrained in Water

[+] Author and Article Information
D. J. Blanchard, P. Griffith, E. Rabinowicz

Dept. of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA

J. Eng. Ind 106(3), 213-217 (Aug 01, 1984) (5 pages) doi:10.1115/1.3185935 History: Received December 02, 1983; Online July 30, 2009

Abstract

The erosion process in a 90-deg pipe elbow is studied to determine the magnitude and location of the maximum wear point. A two-dimensional, theoretical model of the erosion process is set up to track the particle trajectories and then calculate the wear at impingement. Erosion tests on electroplated, 1-in. I.D. elbows are made using particle sizes which vary by over an order of magnitude, but the location of maximum wear for an elbow whose R/D value is 1.5 is almost unaffected. The average angle, φ, which locates the point of maximum erosion, is determined to be 85 deg, measured from the beginning of the curve. The average wear coefficient, Ke , is found to be 0.011. Another test using a more gradual bend curvature (R/D = 5.0, and a mitre bend tested as an approximation of an elbow with R/D value of 0.5, give similar results.) There are considerable discrepancies between computed and measured values of the position of maximum wear, because the model does not account for secondary flows. Finally, a simple technique is outlined to predict the erosion depth at the maximum wear point.

Copyright © 1984 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In