0

Full Content is available to subscribers

Subscribe/Learn More  >

Application of a CFD-Based Erosion Prediction Procedure for Sudden Expansions

[+] Author Affiliations
Sekti S. Nugroho, Brenton S. McLaury, Siamack A. Shirazi

University of Tulsa, Tulsa, OK

Paper No. FEDSM2002-31286, pp. 231-236; 6 pages
doi:10.1115/FEDSM2002-31286
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 2: Symposia and General Papers, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3616-9 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

Pipe fittings used in the production of oil and gas can experience erosion damage from solid particles such as sand present in the produced fluid. The fittings disturb the flow, which often results in erosion. Certain geometries are more susceptible to erosion damage than others; for example, a sudden expansion can experience severe erosion under certain operating conditions. A sudden expansion can promote erosion for two reasons. First, a radial velocity develops downstream of the expansion. This velocity component drives particles toward the wall. Second, the sudden expansion causes a zone of elevated turbulent kinetic energy. The high level of turbulent kinetic energy results in large turbulent fluctuations, and these fluctuations can also force particles to the wall. A comprehensive model for predicting sand erosion has been developed by utilizing a commercially available computational fluid dynamics (CFD) code. This procedure involves flow modeling, particle tracking, and applying erosion equations. Due to the low sand concentrations a one-way coupling is used between the fluid and the particles. The goal of this study is to use the procedure to calculate erosion in sudden expansions and determine if modifications to the existing procedure are necessary. Simulation results for sand in air flowing through sudden expansions with different diameter ratios (1.25 to 2.00) are compared with experimental data. Both the simulations and data show that the maximum erosion rate evaluated in thickness loss per mass of sand passing through the geometry decrease with increasing expansion ratio.

Copyright © 2002 by ASME
Topics: Erosion

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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