A model for predicting sand erosion in 90 degree elbows and bends has been developed based on computational fluid dynamics (CFD), particle tracking and erosion data. After the flow field was obtained from the flow (CFD) model, particles were introduced into the flow and particle trajectories were computed using a Lagrangian approach. A model was also implemented that accounts for the interaction between the particles and the target material. Based on predicted particle impingement velocities, erosion rates and penetration rates were predicted using the empirical equations for erosion ratio. The predicted penetration rates are compared with available experimental data for several different elbows. The agreement between the predicted penetration rates and the experimental data is good. In addition, based on many predictions and erosion rate results, a new CFD based correlation is developed that can be used for an approximate engineering calculation to account for effects of elbow radius on erosion in long-radius elbows. This equation is for computing the ratio of the wall thickness loss (or the penetration rate) in a long-radius elbow to the penetration rate of a standard (short-radius) elbow. The results from the correlation agree well with the trend of available data in the literature.
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March 2003
Technical Papers
A CFD Based Correlation for Erosion Factor for Long-Radius Elbows and Bends
Jianrong Wang,
Jianrong Wang
Mechanical Engineering Department, The University of Tulsa, Tulsa, OK 74104
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Siamack A. Shirazi, Professor,
Siamack A. Shirazi, Professor,
Mechanical Engineering Department, The University of Tulsa, Tulsa, OK 74104
Search for other works by this author on:
Jianrong Wang
Mechanical Engineering Department, The University of Tulsa, Tulsa, OK 74104
Siamack A. Shirazi, Professor,
Mechanical Engineering Department, The University of Tulsa, Tulsa, OK 74104
Contributed by the Petroleum Division for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received by the Petroleum Division; February 2001; revised manuscript received June 2002. Associate Editor: G. Kouba.
J. Energy Resour. Technol. Mar 2003, 125(1): 26-34 (9 pages)
Published Online: March 14, 2003
Article history
Received:
February 1, 2001
Revised:
June 1, 2002
Online:
March 14, 2003
Citation
Wang, J., and Shirazi, S. A. (March 14, 2003). "A CFD Based Correlation for Erosion Factor for Long-Radius Elbows and Bends ." ASME. J. Energy Resour. Technol. March 2003; 125(1): 26–34. https://doi.org/10.1115/1.1514674
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