Flow in Damaged Pipe Networks
Publication: Journal of Hydraulic Engineering
Volume 117, Issue 2
Abstract
In this paper, an approximate algorithm is proposed to eliminate false negative (gauge) pressures that appear during the analysis of a water‐distribution system. Emphasis is placed on the solution of the problem rather than on its cause. The formulation is based on a system of equations for a network that has been constructed using the continuity equations for each node and the head‐loss equations for each pipe. It contemplates two situations: one in which the elimination of a false negative pressure leads to the emptying of all the pipes that join a node, and the other in which the conditions are such that the elimination of the negative pressure leads to one or more pipes flowing partially full as an open channel. Two examples are presented to illustrate the applicability of the approximation, one for an imaginary simple network and the other for a water‐delivery system in a large city.
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References
1.
Chaudhry, M. H. (1987). Applied hydraulic transients. 2d Ed., Van Nostrand Reinhold, New York, N.Y.
2.
Jeppson, R. W. (1976). Analysis of flow in pipe networks. Ann Arbor Science, Ann Arbor, Mich.
3.
Wood, D. J. (1977). “The analysis of steady flow in pipe networks.” Proc. First Int. Conf. on Mathematical Modeling, vol. 3, Univ. of Missouri—Rolla, 1260–1280.
4.
Wood, D. J. (1980). User's manual—Computer analysis of flow in pipe networks including extended simulations. Office of Engrg. Continuing Education and Extension, Univ. of Kentucky, Lexington, Ky.
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Copyright © 1991 ASCE.
History
Published online: Feb 1, 1991
Published in print: Feb 1991
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