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Analytical Expressions for Liquid-Column Velocities in Pipelines With Entrapped Gas

[+] Author Affiliations
Arris S. Tijsseling

Eindhoven University of Technology, Eindhoven, The Netherlands

Qingzhi Hou

Tianjin University, Tianjin, China

Zafer Bozkuş

Middle East Technical University, Ankara, Turkey

Paper No. PVP2015-45184, pp. V004T04A054; 8 pages
  • ASME 2015 Pressure Vessels and Piping Conference
  • Volume 4: Fluid-Structure Interaction
  • Boston, Massachusetts, USA, July 19–23, 2015
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5697-0
  • Copyright © 2015 by ASME


High pressures and high temperatures may arise in pipelines when a liquid column is suddenly accelerated into a gas pocket trapped at a closed end. A mass oscillation occurs that is described by nonlinear equations for both liquid and gas. Analytical expressions are derived for the uniform velocity of the liquid column, from which pressures and gas temperatures follow. The obtained results are validated against theoretical and experimental results published by fellow researchers.

Copyright © 2015 by ASME
Topics: Pipelines



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