Volume 3 Issue 2
Jun.  2010
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Yong-liang ZHANG, Ming-fei MIAO, Ji-ming MA. 2010: Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure. Water Science and Engineering, 3(2): 174-189. doi: 10.3882/j.issn.1674-2370.2010.02.006
Citation: Yong-liang ZHANG, Ming-fei MIAO, Ji-ming MA. 2010: Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure. Water Science and Engineering, 3(2): 174-189. doi: 10.3882/j.issn.1674-2370.2010.02.006

Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure

doi: 10.3882/j.issn.1674-2370.2010.02.006
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  • Corresponding author: Yong-liang ZHANG
  • Received Date: 2010-06-25
  • This paper presents an analytical investigation of water hammer in a hydraulic pressurized pipe system with a throttled surge chamber located at the junction between a tunnel and a penstock, and a valve positioned at the downstream end of the penstock. Analytical formulas of maximum water hammer pressures at the downstream end of the tunnel and the valve were derived for a system subjected to linear and slow valve closure. The analytical results were then compared with numerical ones obtained using the method of characteristics. There is agreement between them. The formulas can be applied to estimating water hammer pressure at the valve and transmission of water hammer pressure through the surge chamber at the junction for a hydraulic pipe system with a surge chamber.

     

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