拉脱速度对测量水表面张力系数影响的研究

doi:10.14139/j.cnki.cn22-1228.2023.06.003

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摘要

本文研究了拉脱速度对测量水表面张力系数精度的影响。实验结果表明：拉脱速度越大，实验测得水的表面张力系数越小，实验误差越大；而相对缓慢的拉脱速度，有利于提高实验的测量精度。同时在理论上，采用 COMSOL 模拟的方式对水膜拉脱前后的形态进行了详细分析。并讨论了不同拉脱速度与水膜形态变化的关联，从而对实验结果作出了合理的解释。本文为精确测量水的表面张力系数，提供了拉脱速度对其影响的实验依据。

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	崔钧晟
	吴秀梅

关键词: 张力系数水膜形态 COMSOL

Abstract:

lt studies the effect of pull-off velocity on the accuracy of water surface tension coefficientmeasurement. The result shows that the measured surface tension coefficient of water will be smaller when alarger pull-off velocity is applied. lt leads to greater experimental error. The relatively slow pull-off speed isconducive to improving the measurement accuracy of the experiment. At the same time, COMSOL simulationmethod is used to analyze the morphology of water film before and after pull-off. lt is discussed of the relationship between different pull-off speed and the morphology of water film. And then, a reasonableexplanation is given to the experimental results. lt provides an experimental basis for accurately measuring the surface tension coefficient of water.

Key words: tension coefficient water film morphology Comsol

发布日期: 2023-12-25

ZTFLH:

O4-34

引用本文:

崔钧晟, 吴秀梅 . 拉脱速度对测量水表面张力系数影响的研究 [J]. 大学物理实验, 2023, 36(6): 11-15.
CUI Juncheng , WU Xiumei. Study on the Influence of Pull-off Velocityon Water Surface Tension Coefficient . Physical Experiment of College, 2023, 36(6): 11-15.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.06.003 或 http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I6/11

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