Numerical Simulation on the Effect of Distance Between Plugs on Multi-plug Energy Dissipation

ZHANG Li-xin; LIANG Wei; AI Wan-zheng

doi:10.11988/ckyyb.20170060

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Journal of Changjiang River Scientific Research Institute ›› 2018, Vol. 35 ›› Issue (4) : 81-83. DOI: 10.11988/ckyyb.20170060

Numerical Simulation on the Effect of Distance Between Plugs on Multi-plug Energy Dissipation

ZHANG Li-xin¹, LIANG Wei², AI Wan-zheng³

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Abstract

The distance between upper plug and lower plug affects the energy dissipation capacity of multi-stage plug discharge tunnel. In the present paper, the reasonable distance between the upper plug and the lower plug in multi-stage plug discharge tunnel is researched by numerical simulations. Result shows that when the contraction ratio is in the scope of 0.4-0.8, a reasonable distance between upper plug and lower plug equal to or more than 5.7D would guarantee the full display of plugs in different stages.

Key words

multi-stage plug / energy loss / numerical simulation / reasonable distance / dissipation capacity

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ZHANG Li-xin, LIANG Wei, AI Wan-zheng. Numerical Simulation on the Effect of Distance Between Plugs on Multi-plug Energy Dissipation[J]. Journal of Changjiang River Scientific Research Institute. 2018, 35(4): 81-83 https://doi.org/10.11988/ckyyb.20170060

References

[1] 李志华, 陈少华, 陈坤, 等. 一种孔板差压流量计性能的数值研究[J]. 长江科学院院报, 2014,31(12):129-134.
[2] 高建生, 丁则裕, 沈熊. 有压管道双孔板水流消能特性试验研究[J]. 水利学报, 1989,(10): 19-27.
[3] 才君眉, 张子冀. 孔板消能工的体型对隧洞泄洪消能的影响[J]. 水力发电学报, 1994,(3): 48-56.
[4] RUSSELL S O, BALL J W. Sudden-enlargement Energy Dissipator for Mica Dam[J]. Journal of the Hydraulics Division,ASCE,1967,93(4):41-56.
[5] 才君眉, 马俊, 张子冀, 等. 孔板流场的二维激光测速试验研究[J].水力发电学报, 1994,(4):51-60.
[6] WU Jian-hua, AI Wan-zheng. Flows Through Energy Dissipaters with Sudden Reduction and Sudden Enlargement Forms[J]. Journal of Hydrodynamics, Ser. B, 2010, 22(3):234-345.
[7] WU Jian-hua, AI Wan-zheng, ZHOU Qi. Head Loss Coefficient of Orifice Plate Energy Dissipaters[J]. Journal of Hydraulic Research,2010, 48(4):526-530.
[8] AI Wan-zheng, LIU Hu. Research on Energy Dissipation in a Discharge Tunnel with a Plug Energy Dissipater[J]. Transactions of FAMENA,2016,40(3):57-66.
[9] 艾万政,周琦. 孔板后回流区长度数值模拟研究[J].水动力学研究与进展A辑,2011, 26(6):731-735.
[10]刘善均, 杨永全, 许唯临,等. 洞塞泄洪洞的水力特性研究[J]. 水利学报,2002,33(7):41-46.
[11]BOHAN J P. Mechanics of Stratified Flow Through Orifice[J]. Journal of the Hydraulics Division, ASCE, 1970, 96(12): 2401-2417.