Hydraulic analysis of leakage from submarine pipe network

• Autorzy: Li J. H. , Fan Y. T.

Identyfikatory

DOI

10.1515/pomr-2015-0032

• Języki publikacji: EN

Abstrakty

EN

The leakage from submarine pipe network is investigated by a numerical model in this paper. A whole event including of the steady flow before the leakage, the transient flow during the leakage and the steady flow after the leakage is considered in the model. The numerical results of the discharge and the head compare with the theoretical solution under the condition of steady flow. Good agreement is obtained. The numerical results of the discharge and the head show that the discharge and the head in each pipe changes suddenly after the leakage occurring. The abrupt trend of the discharge in each pipe is not same completely. Some change upwards, while others downwards. However, the abrupt trend of the head is always downward. The effects of leakage discharge on the transient flow are also investigated. It is founded that the larger the leakage discharge, the more obvious the abrupt trend of the discharge and the head before or after the leakage is.

Słowa kluczowe

EN

submarine pipe network; leakage; transient flow

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: S 1
• Strony: 48--55
• Opis fizyczny: Bibliogr. 8 poz., rys, tab.

Twórcy

autor

Li J. H.

• School of Ocean Science and Engineering, Shanghai Maritime University Shanghai 200136 China

autor

Fan Y. T.

• School of Ocean Science and Engineering, Shanghai Maritime University Shanghai 200136 China

Bibliografia

• 1. Axworthy,D.(1997) Water distribution network modelling from steady state to waterhammer. Ph.D. thesis, Dept. of Civil Engineering,Univ of Toronto,Toronto.
• 2. Betamio de.Almeida.A and Koeile.E.(1992).Fluid transients in pipe networks.Computational Mechanics Publications.Southampton.C.K.
• 3. Cheong,L.C.(1991).Unaccounted for water and economics of leak detection.8th Int.Water Supply Congress and Exhibition.Water Suppply:The review journal of the Int. Water Supply.
• 4. Karney B.W.. and Mclnnis.D.(1990). Transient analysis of water distribution system. J. Of -4 WW4,82(7).62-70.
• 5. Ligget J.A. and Chen,L.C.(1994).Inverse transient analysis in pipe network.J Hyd.Eng.120(8),p934-955.
• 6. Pudar,R.S. And Liggett,J.A.(1991).Leaks in pipe networks.J of Hyd.Eng. 118(7),1992,p 1031-1046.
• 7. Vitkovsky,J.P. Simpson,A.R.,and Lambert,M.F.(2000). Leak detection and calibration using transients and genetic algorithms,J. Water Resour. Plann. Manage.126(4),p262-265.
• 8. Wylie E.B. and Streerer V.L.(1993).Fluid transients in systems.Prentice-Hall Englewood Cliffs,N.J.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.