| 小波动状况下简单式调压室水位波动分析 |
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| 引用本文： | 史晓阳,徐进超,陈方亮,胡祥伟,秦晓峰.小波动状况下简单式调压室水位波动分析[J].水电能源科学,2012,30(8):136-138. |
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| 作者姓名： | 史晓阳 徐进超 陈方亮 胡祥伟 秦晓峰 |
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| 作者单位： | 1. 河海大学水利水电学院,江苏南京,210098
2. 徐州市水利建筑设计研究院,江苏徐州,221000 |
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| 摘 要： | 计算电站微小负荷变化导致水位小幅波动时,由于调压室水位波动情况复杂,需编制相应体型非恒定流计算程序来解决。根据简单式调压室基本方程推导出了解析法,应用泰勒展开式将引水道和调压室的动量方程的摩阻损失线性简化,通过求解常微分方程即可得出流量瞬时改变或流量随时间改变时调压室中的水位波动方程,进而可分析水位波动振幅的衰减并验证了调压室的稳定性。
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| 关 键 词： | 小波动 调压室 水位波动 振幅 |
Water Level Fluctuation Analysis of Simple Surge Chamber under Small Fluctuation |
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| SHI Xiaoyang,XU Jinchao,CHEN Fangliang,HU Xiangwei and QIN Xiaofeng.Water Level Fluctuation Analysis of Simple Surge Chamber under Small Fluctuation[J].International Journal Hydroelectric Energy,2012,30(8):136-138. |
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| Authors: | SHI Xiaoyang XU Jinchao CHEN Fangliang HU Xiangwei and QIN Xiaofeng |
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| Affiliation: | College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China;College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China;Xuzhou Design Institute of Water Conservancy and Architecture,Xuzhou 221000, China;College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China;College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China |
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| Abstract: | Water level fluctuation of the surge chamber is considerable complex, so the calculation of small fluctuation caused by samll variation load needs to be developed unsteady flow shape program. This paper deduces the analytical method in terms of the basic equations of simple surge chamber. Taylor expansion is used to simplify equation of friction loss linear model in momentum of derivation tunnel and surge chamber. Water level fluctuation can be obtained for instantaneous flow change or flow variation with time by solving the differential equation. It can analyze the attenuation of water level fluctuation and verify the stability of the surge chamber. |
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| Keywords: | small fluctuation surge chamber water level fluctuation amplitude |
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