Description
Pipes in distribution systems often become tubercolated,which can lead to an increase in the roughnessof the pipe wall and in a reduction of the pipe diameter.Many model calibrations allow for adjusting theroughness coefficients alone, often neglecting the reductionin pipe diameter. Such oversights can have a significanteffect on the prediction of correct flow velocity.This article explores the relationship betweenpipe roughness and effective pipe diameter. On thebasis of a series of fieldwork measurements and amodeling study, the authors make several conclusions,including: calibrating models usingchanges in pipe wall roughness to describe measuredpressure data may be insufficient to accuratelymodel the performance of the system; and, ignoringthe reduced effective diameter of the pipecan lead to incorrect predictions of hydrauliccapacity. Includes 11 references, figures.
Product Details
- Edition:
- Vol. 96 – No. 4
- Published:
- 04/01/2004
- Number of Pages:
- 9
- File Size:
- 1 file , 4.5 MB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
