| CAVITATION INCEPTION WITNESSED BY SOUND PRESSURE LEVEL IN MODEL TEST AND PROTOTYPE OBSERVATION |
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| 引用本文： | ZHANGDong LIUZhi-ping JINTai-lai XIANGYa-ping. CAVITATION INCEPTION WITNESSED BY SOUND PRESSURE LEVEL IN MODEL TEST AND PROTOTYPE OBSERVATION[J]. 水动力学研究与进展(B辑), 2004, 16(2): 227-232 |
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| 作者姓名： | ZHANGDong LIUZhi-ping JINTai-lai XIANGYa-ping |
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| 作者单位： | ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing100038,China,e-mail：iwhrh23@iwhr.com |
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| 摘 要： | The paper concerns with the relationship between cavitation inception and Sound Pressure Level (SPL). A case study for the Xiaolangdi Hydro-proiect was taken as a typical example, which demonstrated the standard criterion of SPL indicating cavitation inception. Cavitation inception of an orifice plate used for energy dissipation in a tunnel spillway was witnessed and verified both in model test and prototype observation. A design criterion was proposed for a cavitationfree hydraulic structure which can be served as a reference for designers as well as researchers. Consequently, scale effects were discussed with an aim at suggesting an appropriate factor of safety in design.
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| 关 键 词： | 声压基准面 噪声 小浪底水利枢纽工程 成穴 工程模拟 |
CAVITATION INCEPTION WITNESSED BY SOUND PRESSURE LEVEL IN MODEL TEST AND PROTOTYPE OBSERVATION |
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| ZHANG Dong,LIU Zhi-ping,JIN Tai-lai,XIANG Ya-ping China Institute of Water Resources and Hydropower Research,Beijing ,China. CAVITATION INCEPTION WITNESSED BY SOUND PRESSURE LEVEL IN MODEL TEST AND PROTOTYPE OBSERVATION[J]. Journal of Hydrodynamics, 2004, 16(2): 227-232 |
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| Authors: | ZHANG Dong LIU Zhi-ping JIN Tai-lai XIANG Ya-ping China Institute of Water Resources Hydropower Research Beijing China |
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| Affiliation: | ZHANG Dong,LIU Zhi-ping,JIN Tai-lai,XIANG Ya-ping China Institute of Water Resources and Hydropower Research,Beijing 100038,China |
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| Abstract: | The paper concerns with the relationship between cavitation inception and Sound Pressure Level (SPL). A case study for the Xiaolangdi Hydro-project was taken as a typical example, which demonstrated the standard criterion of SPL indicating cavitation inception. Cavitation inception of an orifice plate used for energy dissipation in a tunnel spillway was witnessed and verified both in model test and prototype observation. A design criterion was proposed for a cavitation-free hydraulic structure which can be served as a reference for designers as well as researchers. Consequently, scale effects were discussed with an aim at suggesting an appropriate factor of safety in design. |
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| Keywords: | cavitation inception Sound Pressure Level (SPL) noise |
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