A Pressure-Sensitive Approach for the Transient Analysis of Uniformly Distributed Demands

Authors

  • John Twyman TWYMAN Ingenieros Consultores

Keywords:

Method of Characteristics, Newton-Raphson, pressure-insensitive demand, transient flow, Pressure-sensitive demand

Abstract

In the modelling of water distribution systems is common to assume that water demands are located at the junctions, with a constant and previously known value. This assumption allows simplify the mathematical analysis of the problem, even when in some cases is more suitable to model the water demand assuming that it has a magnitude which is pressure-sensitive. In this article an original pressure-sensitive approach is proposed to calculate the state variables (flow and pressure) in a pipe with uniformly distributed demands. The general conclusion is that the approach based on the pressure-sensitive demand, compared with the usual method of the pressure-insensitive demand, shows significant attenuation in pressure which may condition the design and/or operating procedure of some devices such as valves or air chambers. 

Downloads

Download data is not yet available.

Downloads

Published

2018-11-08

How to Cite

Twyman, J. (2018). A Pressure-Sensitive Approach for the Transient Analysis of Uniformly Distributed Demands. Journal of Construction and Civil Engineering, 8(2), 25–34. Retrieved from https://revistas.ufro.cl/ojs/index.php/rioc/article/view/2006

Issue

Vol. 8 No. 2 (2018)

Section

Articles

License

The authors who publish in this journal accept the following conditions:

  • The authors retain the copyright and assign to the magazine the right of the first publication, with the work registered with the Creative Commons attribution license, which allows third parties to use the published information whenever they mention the authorship of the work and the First publication in this journal.
  • Authors may make other independent and additional contractual arrangements for non-exclusive distribution of the version of the article published in this journal (eg, include it in an institutional repository or publish it in a book) as long as it clearly indicates that the work Was first published in this magazine.
  • Authors are encouraged and encouraged to publish their work on the Internet (for example, on institutional or personal pages) before and during the review and publication process, as it can lead to productive exchanges and a greater and faster dissemination of work Published (see The Effect of Open Access).