确定供水系统中输送流量的精确来源越来越重要。当个别供应超过某些化学或生物成分的允许水平时，就有必要这样做。提出了一种针对复杂配水系统进行计算的显式方法。该方法要求解一组阶数等于连接数的线性方程组。方程系数基于所考虑系统需求的流量分布。由于显式求解过程需要同时求解大型网络的大型方程组，因此开发了一种替代求解技术。 这种迭代循环技术以一种简单、循环的方式求解方程，几乎不需要计算机存储，并被证明是执行计算的有效方案。包括5个参考文献、表格、图表。

Identifying the precise source of delivered flow in water distribution systems is increasingly important. The necessity for this arises when individual supplies exceed allowable levels of certain chemical or biological constituents. An explicit methodology to make these calculations for complex water distribution systems is presented. The methodology requires the solution of a set of linear equations of order equal to the number of junctions. The equation coefficients are based on the flow distribution for the system demands under consideration. Because the explicit solution procedure requires the simultaneous solution of large equation sets for large networks, an alternative solution technique was developed. This iterative cyclic technique solved the equations in a simple, cyclic manner requiring little computer storage and proved to be an efficient scheme for carrying out the calculations. Includes 5 references, tables, figures.