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| 水吸收及距离对减压试验的影响 | |
| 引用本文： | 雷丹,王韦,纪麟,张宏勇.水吸收及距离对减压试验的影响[J].水利与建筑工程学报,2008,6(4). |
| 作者姓名： | 雷丹 王韦 纪麟 张宏勇 |
| 作者单位： | 1. 广西电力工业勘察设计研究院,广西,南宁,530023 2. 四川大学水力学与山区河流保护与开发国家重点实验室,四川,成都,610065 3. 吉林省水利水电勘测设计研究院,吉林,长春,130021 |
| 摘 要： | 根据水吸收及距离引起的声波衰减计算公式,对水吸收及距离可能对减压实验中空化噪声强度测量结果造成的影响作了初步的理论探讨。研究表明,水吸收及距离产生的声衰减在一定距离范围内对空化初生的判别并无影响,超过一定距离范围则水听器监测到的空化初生判别结果不再准确。 |
| 关 键 词： | 声压级 减压模型 空化 噪声 水吸收 距离 |
Effects of Water Absorbability and Distance in Test of Pressure Relief Model |
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| LEI Dan,WANG Wei,JI Lin,ZHANG Hong-yong.Effects of Water Absorbability and Distance in Test of Pressure Relief Model[J].Journal of Water Resources Architectural Engineering,2008,6(4). | |
| Authors: | LEI Dan WANG Wei JI Lin ZHANG Hong-yong |
| Affiliation: | 1.Guangxi Investigation and Design Institute of Electric Power Industry;Nanning;Guangxi 530023;China;2.State Key Laboratory of Hydraulics and Mountain River Engineering;Sichuan University;Chengdu;Sichuan 610065;3.Jilin Investigation and Design Institute of Water Conservancy and Hydropower;Changchun;Jilin 130021;China |
| Abstract: | The effects of the water absorbability and distance on the noise intensity of cavitation in a test of pressure relief model are discussed based on a calculating formula of the acoustic attenuation.The results show that the effect of the acoustic attenuation on the judgment of cavitation inception is little,and when out of a range,the effect will be obvious. |
| Keywords: | SPL pressure relief model cavitation noise water absorbability distance |
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