Computer Analysis of Water Distribution Systems: Part I–Formulation of Equations

by Chan F. Lam, Asst. Prof.; Dept. of Biometry, Medical Univ. of South Carolina, Charleston, SC,
M. L. Wolla, Assoc. Prof.; Dept. of Electrical and Computer Engrg., Clemson Univ., Clemson, SC,

Serial Information: Journal of the Hydraulics Division, 1972, Vol. 98, Issue 2, Pg. 335-344

Document Type: Journal Paper


Linear graph theory has been used to formulate a system of equations that describes the steady state flow of a water distribution system. An efficient algorithm to formulate the system of node equations has been devised and successfully implemented on a digital computer. This computer program has been used to generate equations for various water distribution systems. The system of equations was generated in such a form that minimal time is required for their evaluation in an iteration solution process. The form of the system of equations is such that different headloss-flow rate relationships of a pipe, in addition to the Hazen-Williams formula, can be used in the computer program.

Subject Headings: Computer analysis | Water supply systems | Computer software | Linear functions | Steady states | Flow distribution | Steady flow | Water flow

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