Analysis of flow characteristics in pumped storage unit during start-up in turbine mode
Analysis of flow characteristics in pumped storage unit during start-up in turbine mode
复制标题
抽水蓄能机组水轮机启动时流量特性分析
DOI:
10.1088/1742-6596/1985/1/012051
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Zhengwei Wang
中科院分区:
文献类型:
--
作者:
Tao Liu;Chao Wang;Zhiming Chen;Funan Chen;Huili Bi;Yongyao Luo;Zhengwei Wang
Abstract. During the start-up, the unit enters into speed-no-load from static state. The runner is full of complex vortex, which hinders the water flow into the runner, and even leads to the failure of starting up. It is necessary to study the vortex and flow state to evaluate the stability of start-up. In this paper, the coupling method of one-dimensional pipeline system and three-dimensional flow inside the unit is used to simulate the startup process and analyse the three-dimensional flow state in runner. The flow instability during the start-up process is deeply studied by analysing the pressure distribution, streamline and turbulent kinetic energy. The results show that the turbulence intensity in the runner decreases with the increase of discharge. During start-up, the vortices in the runner occupy the whole blade passage, and then disappear. With the decrease of discharge, the turbulent kinetic energy at the runner inlet rises and small vortex appears at runner inlet.
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影响因子:
2.3
作者:
L. Xia;Chunze Zhang;Hu Li
通讯作者:
L. Xia;Chunze Zhang;Hu Li
DOI:
--
发表时间:
1961
期刊:
--
影响因子:
--
作者:
L. Bergeron;A. G. Ferron;S. Logan
通讯作者:
L. Bergeron;A. G. Ferron;S. Logan
DOI:
10.1088/1755-1315/12/1/012071
发表时间:
2010-08
期刊:
--
影响因子:
--
作者:
S. Cherny;D. Chirkov;D. Bannikov;V. Lapin;V. Skorospelov;I. Eshkunova;A. Avdushenko
通讯作者:
S. Cherny;D. Chirkov;D. Bannikov;V. Lapin;V. Skorospelov;I. Eshkunova;A. Avdushenko
影响因子:
2.5
作者:
Zhang Xiao-xi;Cheng Yong-guang
通讯作者:
Cheng Yong-guang
DOI:
10.1177/0957650916646911
发表时间:
2016-05
影响因子:
1.7
作者:
Li, Zhongjie;Bi, Huili;Wang, Zhengwei;Yao, Ze
通讯作者:
Yao, Ze