Numerical Solutions of Transients in Pneumatic Networks: Part 3—Network Problems With Branching

[+] Author and Article Information
S. Tsao, W. Rodgers

Systems Development Division, International Business Machines Corp., Endicott, N. Y.

J. Appl. Mech 36(3), 594-597 (Sep 01, 1969) (4 pages) doi:10.1115/1.3564722 History: Received August 29, 1968; Online September 14, 2011


This paper investigates the mathematical problem of fluid flow at a junction. It is shown that the junction pressure at a given time can be expressed approximately in terms of the known pressures and flow rates at and near the junction at an earlier time. After the junction pressure is determined, it serves as a boundary condition for all the transmission lines meeting at the junction. Several junction networks are computed for illustrative purposes.

Copyright © 1969 by ASME
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