| 低气压对水体表面张力影响研究 |
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| 引用本文： | 王余杰,张陆陈,骆少泽.低气压对水体表面张力影响研究[J].科学技术与工程,2017,17(36). |
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| 作者姓名： | 王余杰 张陆陈 骆少泽 |
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| 作者单位： | 南京水利科学研究院 南京；河海大学 南京,南京水利科学研究院,南京水利科学研究院 |
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| 基金项目： | 国家自然科学基金项目(51409160);国家重点研发计划资助项目(2016YFC0401901); |
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| 摘 要： | 表面张力是液体接触气体时的基本特性。本文设计了低气压下表面张力系数测量装置,研究了气压降低对水体表面张力系数的影响,提出了低气压下表面张力系数计算公式。研究表明,相同水体温度下,气压与水体表面张力系数间呈良好的线性关系,气压越低,表面张力系数越大；气压降低时,气压和温度对水体表面张力的影响是基本独立的。
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| 关 键 词： | 表面张力系数 毛细管法 低气压 实验装置 |
| 收稿时间： | 2017/5/22 0:00:00 |
| 修稿时间： | 2017/7/14 0:00:00 |
Study on the influence of low atmospheric pressure on surface tension of water |
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| Institution: | Nanjing Hydraulic Research Institute;Hohai University,,Nanjing Hydraulic Research Institute |
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| Abstract: | Surface tension is a basic characteristic when liquid is in contact with gas. In this article, a device for measuring the surface tension coefficient of water under low atmospheric pressure was designed, the effect of reduction of the atmospheric pressure on the surface tension coefficient was studied, and the calculation formula of surface tension coefficient under low atmospheric pressure was presented. Research suggests that there is a good linear relationship between the atmospheric pressure and the surface tension coefficient under the same water temperature. The lower the atmospheric pressure is, the greater the surface tension coefficient is. The influence of atmospheric pressure and temperature on the surface tension of water is basically independent when the pressure decreases. |
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| Keywords: | Surface tension coefficient Capillary method Low atmospheric pressure Experimental device |
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