Pressure Transient Analysis in Piping Systems Including the Effects of Plastic Deformation and Cavitation

[+] Author and Article Information
C. K. Youngdahl, C. A. Kot, R. A. Valentin

Components Technology Division, Argonne National Laboratory, Argonne, Ill. 60439

J. Pressure Vessel Technol 102(1), 49-55 (Feb 01, 1980) (7 pages) doi:10.1115/1.3263301 History: Received December 22, 1977; Revised July 23, 1979; Online November 05, 2009


Computational methods for analyzing pressure transients in the intermediate heat transport system of a sodium-cooled breeder reactor are being developed at Argonne National Laboratory. The pressure pulses produced by a sodium/water reaction in a steam generator may plastically deform sections of the piping, and wave interactions may then produce cavitation in the system. Both these phenomena have a large effect on the pressure pulses traversing the pipe network and, consequently, on the transient loading on major components. Comparisons will be shown between predictions of the PTA-2 computer code and the results of experiments performed at Stanford Research Institute. In these experiments, a pressure pulse caused plastic deformation of a thin-walled pipe, producing a rarefaction wave which then produced a cavitated region in another pipe.

Copyright © 1980 by ASME
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