In the past, most
transient analysis was performed only on large transmission mains using highly skeletonized
models for engineering design, and proprietary transient computer programs were largely limited
to specialized consulting companies, research organizations, and universities. In addition to
improved design and operation of water distribution systems, a driving force behind this trend is
the increased awareness that hydraulic transients can also create unexpected opportunities for
pathogens present in the external environment to intrude into the distribution system with
disastrous consequences to public health. Thus, transient events cause health risks and can lead to
increased leakage or decreased reliability. Transient flow simulation has become an essential
requirement for assuring safety and the safe operation of drinking water distribution systems.
Modern management of water distribution systems needs simulation models that are able to
accurately predict transient flow and pressure variations within the distribution system
environment. This paper provides a basic understanding of the physical phenomena and context
of transient conditions, presents practical guidelines for their suppression and control, and
describes a highly efficient Lagrangian-based simulation scheme that compares favorably with
traditional Eulerian-based hydraulic transient methods for analyzing large-scale, all-pipe water
distribution system models. Includes 24 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.3 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 19 |
| Published : | 06/17/2005 |
