0

Full Content is available to subscribers

Subscribe/Learn More  >

CFD Prediction and LDV Validation of Liquid and Particle Velocities in a Submerged Jet Impinging a Flat Surface for Different Viscosities and Particle Sizes

[+] Author Affiliations
Yongli Zhang, Risa Okita, Stephen Miska, Brenton S. McLaurt, Siamack A. Shirazi, Edmund F. Rybicki

The University of Tulsa, Tulsa, OK

Paper No. FEDSM2009-78333, pp. 625-635; 11 pages
doi:10.1115/FEDSM2009-78333
From:
  • ASME 2009 Fluids Engineering Division Summer Meeting
  • Volume 1: Symposia, Parts A, B and C
  • Vail, Colorado, USA, August 2–6, 2009
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4372-7 | eISBN: 978-0-7918-3855-6
  • Copyright © 2009 by ASME

abstract

Solid particle erosion commonly occurs in the oil and gas industry and can cause severe damage to flow lines and equipment. One successful approach to predicting erosion, and mitigating sand erosion damage, is through the application of computational fluid dynamics (CFD) modeling of the fluid flow, sand particle movement within the flow, and erosion resulting from the sand particles hitting the metal surface [1, 2, 3]. A key ingredient to predicting erosion damage is having an equation to represent erosion damage due to sand particles hitting the metal surface. This equation, called the erosion equation, usually includes the properties of the sand, the particle impact speed, and the angle of impact. The particle impact speed is known to be a major factor affecting the severity of erosion and can be found in most erosion equations in the literature. The erosion equation is usually material specific and its validation is very important before being applied in engineering calculations to predict erosion of flow lines, tubing, and equipment. Carrier fluid properties have a substantial effect on particle trajectories. The present studies were performed to examine the effect of fluid viscosity on the particle impacting velocity. Direct impingement tests, which consist of a submerged fluid jet containing aluminum particles impinging on a flat surface, were conducted. Carrier fluids with viscosities ranging from 1 cP to 100 cP and three types of aluminum particles with average diameters of 3 μm, 120 μm, and 550 μm were tested in the experiments. The distance between the nozzle exit and the target surface is 12.7 mm and the nozzle diameter is 8 mm. The flow rate through the nozzle is 8 GPM, which corresponds to an average flow velocity of about 10 m/s. Particle velocities at different locations between the nozzle exit and the target surface were measured using a laser Doppler velocimeter (LDV). CFD simulations for all test conditions were also run using FLUENT 6. The predicted solid particle velocities were compared with the LDV data and good agreement was achieved. Both experiments and simulations indicate that flow in the nozzle and near the target undergoes a transition from turbulent to laminar flow when the fluid viscosity is increased and this greatly affects particle velocities near the target.

Copyright © 2009 by ASME

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