World Environmental and Water Resources Congress 2020
Pressure Transients in a Sewage Pumping System: Field Tests and Hydraulic Modelling
Publication: World Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis
ABSTRACT
This research work focused on the analysis of hydraulic transients induced by a pump trip off in a sewer pumping system located in Lisbon, Portugal. Field experiments have been carried out to collect transient pressure and steady-state flow rate data in the pumping station. The influence of dynamic effects on the system behaviour and on the numerical modelling has been investigated. Pressure transients were simulated considering the elastic water hammer model by means of the traditional method of characteristics as well as incorporating unsteady friction and gaseous cavitation by using the discrete gas cavity model. The boundary conditions of the hydraulic model were a pump with inertial properties at the upstream end and a free discharge to the atmosphere at the downstream end. Immediately downstream the pump, a check valve is installed and its closure was determined. Good agreement has been obtained between measured and computed pressure head histories if gaseous cavitation was taken into account in the hydraulic solver.
Get full access to this article
View all available purchase options and get full access to this chapter.
ACKNOWLEDGMENTS
The authors gratefully acknowledge the financial support of CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior).
REFERENCES
Almeida, A.B. and Koelle, E. (1992). Fluid Transients in Pipe Networks, Computational Mechanics Publications, Elsevier Applied Science, Southampton, UK.
Axworthy, D.H. and Chabot, N. (2004). “Pressure transients in a Canadian sewage force main.” Canadian Journal of Civil Engineering, 31(6), 1039-1050.
Bergant, A., Simpson, A.R., and Tijsseling, A.S. (2006). “Water hammer with column separation: a historical review.” Journal of Fluids and Structures, 22(2), 135-171.
Brunone, B. and Morelli, L. (1999). “Automatic control valve-induced transients in operative pipe system.” Journal of Hydraulic Engineering, 125(5), 534-542.
Chaudhry, M.H. (2014). Applied Hydraulic Transients, 3rd Ed., Springer, New York, USA.
Covas, D.I.C. and Ramos, H.M. (2010). “Case studies of leak detection and location in water pipe systems by inverse transient analysis.” Journal of Water Resources Planning and Management, 136(2), 248-257.
Soares, A.K., Covas, D.I.C., and Ramos, H.M. (2013). “Damping analysis of hydraulic transients in pump-rising main systems.” Journal of Hydraulic Engineering, 139(2), 233-243.
Stephens, M., Simpson, A.R., Lambert, M.F., and Vítkovkský, J.P. (2005). “Field measurements of unsteady friction effects in a trunk transmission pipeline.” Proc., 7th Annual Symposium on Water Distribution Systems Analysis, ASCE, Anchorage, USA.
Swamee, P.K. (1993). “Design of a submarine pipeline.” Journal of Transportation Engineering, 119(1), 159-170.
Thorley, A.R.D. and Faithfull, E.M. (1992). “Inertias of pumps and their driving motors.” Proc., International Conference on Unsteady Flow and Fluid Transients, Balkema, Rotterdam, the Netherlands, 285-289.
Vardy, A.E., Brown, J.M.B., and He, S. (1993). “A Weighting Function Model of Transient Turbulent Pipe Friction”. Journal of Hydraulic Research, 31(4), 533-548.
Wylie, E.B. (1984). “Simulation of vaporous and gaseous cavitation.” Journal of Fluids Engineering, 106(3), 307-311.
Wylie, E.B. and Streeter, V.L. (1993). Fluid Transients in Systems, Prentice Hall, Englewood Cliffs, N.J.
Information & Authors
Information
Published In
World Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis
Pages: 385 - 394
Editors: Sajjad Ahmad, Ph.D., and Regan Murray, Ph.D.
ISBN (Online): 978-0-7844-8297-1
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: May 14, 2020
Published in print: May 14, 2020
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.