TIME DEPENDENT PIPE FORCES CAUSED BY BLOWDOWN AND FLOW STOPPAGE

Formulations are developed in this study for rapid estimates of time-and-space-dependent pipe reaction forces caused by either sudden blow-down or flow stoppage in a fluid piping system. The analytical model is a uniform pipe with arbitrary bends and friction, a pressure source at one end, and a sudden opening or closing valve at the other end. A homogeneous mixture of liquid and ideal gas flows in the system. The method of characteristics is used to obtain fluid-mechanical properties, which then are employed to predict associated pipe loads. A graphical summary of results includes initial and steady blowdown forces, wave propagation forces, and local force-time behavior. The formulations presented are expected to provide a basis for confident, efficient, and economical design of pipe system layout and motion restraints.

  • Supplemental Notes:
    • To be published in ASME Transactions-Journal of Fluids Engineering.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  USA  10016-5990
  • Authors:
    • Moody, F J
  • Publication Date: 1973-8

Subject/Index Terms

Filing Info

  • Accession Number: 00051806
  • Record Type: Publication
  • Source Agency: American Society of Mechanical Engineers
  • Report/Paper Numbers: #73-FE-23 Paper
  • Files: TRIS
  • Created Date: Mar 18 1974 12:00AM