| 长连接管和分流调压室的波动稳定和衰减特性 |
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| 引用本文： | 刘〓畅,程永光. 长连接管和分流调压室的波动稳定和衰减特性[J]. 水电能源科学, 2012, 30(2): 131-135 |
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| 作者姓名： | 刘〓畅 程永光 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,湖北武汉,430072 |
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| 基金项目： | 国家自然科学基金资助项目（51039005，50909076） |
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| 摘 要： | 为研究长连接管和分流作用对调压室稳定断面和水位波动衰减特性的影响,推导了长连接管与分流调压室稳定断面计算公式,采用MathCAD数值验证理论推导结果,并分析了连接管和分流作用对调压室水位波动幅值、周期和衰减速度的影响规律,以实际水电站为例进行对比计算。结果表明,设置长连接管对调压室稳定断面无影响,但不利于调压室水位波动衰减,而分流作用可减小调压室稳定断面,使调压室水位波动迅速衰减。
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| 关 键 词： | 调压室 连接管 分流 稳定断面 波动衰减 |
Stability and Attenuation of Surge Wave in Surge Chamber with Long Lateral Pipe and Distributary |
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| LIU Chang and CHENG Yongguang. Stability and Attenuation of Surge Wave in Surge Chamber with Long Lateral Pipe and Distributary[J]. International Journal Hydroelectric Energy, 2012, 30(2): 131-135 |
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| Authors: | LIU Chang and CHENG Yongguang |
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| Affiliation: | State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | The influence of long lateral pipe and diversion on the stability and attenuation of surge wave in surge chamber are investigated by deducing the formula of the stable sectional area. And the derivation results are verified by MathCAD numerical calculation. Then the variations of the surge wave amplitude, period and attenuation rate in surge chamber with long lateral pipe and distributary are analyzed. Taking hydropower station for an example, the results show that long lateral pipe will not change the stable section, but brings about negative impact on the attenuation of surge wave while the distributary reduces the stable sectional area and accelerates the attenuation in surge chamber. |
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| Keywords: | surge chamber lateral pipe diversion stable section surge wave attenuation |
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