Journal of Applied Mathematics

  • J. Appl. Math.
  • Volume 2013, Special Issue (2013), Article ID 231260, 9 pages.

Hydraulic Transients Induced by Pigging Operation in Pipeline with a Long Slope

Tao Deng, Jing Gong, Haihao Wu, Yu Zhang, Siqi Zhang, Qi Lin, and Huishu Liu

Full-text: Open access

Abstract

Pigging in pipelines basically performs operations for five reasons including cleaning the pipe interior, batching or separating dissimilar products, displacement, measurement, and internal inspection. A model has been proposed for the dynamic simulation of the pigging process after water pressure testing in a long slope pipeline. In this study, an attempt has been made to analyze two serious accidents during pigging operation in 2010 by the model which is developed by the method of characteristic (MOC) by Wylie et al. (1993) and the two-phase homogeneous equilibrium vaporous cavitation model deveoped by Shu (2003) for vaporous cavitation. Moreover, simulation results of the third operation show good agreement with field data from the previous field trial. After investigation, it was showed that the impulse pressures produced during collapse of a vapor cavity result in severe damage of tubes.

Article information

Source
J. Appl. Math., Volume 2013, Special Issue (2013), Article ID 231260, 9 pages.

Dates
First available in Project Euclid: 7 May 2014

Permanent link to this document
https://projecteuclid.org/euclid.jam/1399493724

Digital Object Identifier
doi:10.1155/2013/231260

Citation

Deng, Tao; Gong, Jing; Wu, Haihao; Zhang, Yu; Zhang, Siqi; Lin, Qi; Liu, Huishu. Hydraulic Transients Induced by Pigging Operation in Pipeline with a Long Slope. J. Appl. Math. 2013, Special Issue (2013), Article ID 231260, 9 pages. doi:10.1155/2013/231260. https://projecteuclid.org/euclid.jam/1399493724


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