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.
- To be published in ASME Transactions-Journal of Fluids Engineering.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY USA 10016-5990
- Moody, F J
- Publication Date: 1973-8
- TRT Terms: Pipe; Pipe flow; Piping systems; Stresses; Vibration
- Old TRIS Terms: Pipe stresses; Pipe vibration
- Subject Areas: Marine Transportation; Materials;
- 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