Record Display for the EPA National Library Catalog


Main Title Discrete Volume-Element Method for Network Water-Quality Models.
Author Rossman, L. A. ; Boulos, P. F. ; Altman, T. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Montgomery-Watson, Pasadena, CA. Dept. of Computer Aided Engineering. ;Colorado Univ. at Denver. Dept. of Computer Science and Engineering.
Publisher 1993
Year Published 1993
Report Number EPA/600/J-93/431;
Stock Number PB94-101870
Additional Subjects Water quality ; Computerized simulation ; Distribution systems ; Water management ; Potable water ; Water pollution ; Water treatment ; Time series analysis ; Algorithms ; Mathematical models ; Water flow ; Network flows ; Solutes ; Mass balance ; Reaction kinetics ; Hydraulics ; Reprints ; Discrete Volume-Element Method
Library Call Number Additional Info Location Last
NTIS  PB94-101870 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 16p
An explicit dynamic water quality modeling algorithm is developed for tracking dissolved substances in water distribution networks. The algorithm is based on a mass balance reaction within pipes that considers both advective transport and reaction kinetics. Complete mixing of material is assumed at pipe junctions and storage tanks. The algorithm automatically selects a pipe segmentation scheme and computational time step that satisfies conservation of mass and seeks to minimize numerical dispersion. In contrast to previous water quality models, there is no need to first find unique flow paths through the network. The resulting method is both robust and efficient, and can readily be applied to all types of network configurations and dynamic hydraulic conditions. The applicability of the method is demonstrated using an example pipe distribution network. Enhancement of distribution system water quality management is a principal benefit of the methodology.