动态气泡法测量液体表面张力及空气黏滞系数MEASUREMENT OF LIQUID SURFACE TENSION AND AIR VISCOSITY COEFFICIENT USING DYNAMIC BUBBLE METHOD
李青林,王槿,邓志超,丁彦静,张超,刘可,魏子骏
摘要(Abstract):
本文介绍了一种利用动态气泡法测量泡泡液表面张力系数和空气黏滞系数的装置。该装置捕捉肥皂泡充气膨胀过程的半径和内外压强差的变化,通过数据拟合确定泡泡液的表面张力系数,利用拉普拉斯方程和泊肃叶方程进行推导,对泡泡收缩过程中的半径变化做出合理预测。由泡泡收缩过程的数据分析可得空气的黏滞系数。该装置集成了液体表面张力系数和空气黏滞系数的测量,能够丰富和提升学生的知识储备和实验技能,通过装置调整亦可进行探究拓展,适合于大学物理实验教学。
关键词(KeyWords): 动态气泡法;表面张力系数;空气黏滞系数;大学物理实验
基金项目(Foundation): 2024年教育部实验教学和教学实验室建设研究项目(SYJX2024-024);2024年教育部高校教师教学组织和教学发展体系建设研究项目;; 教育部港澳与内地高等学校师生交流计划项目
作者(Author): 李青林,王槿,邓志超,丁彦静,张超,刘可,魏子骏
参考文献(References):
- [1] 刘静,朱泽斌,卞琦琦,等.对液体表面张力系数测量的改进[J].大学物理实验,2018,31(1):16-18.LIU J,ZHU Z B,BIAN Q Q,et al.Improvement of measuring the liquid surface tension coefficient[J].Physical Experiment of College,2018,31(1):16-18.(in Chinese)
- [2] 潘湛昌,苏小辉,张环华,等.最大气泡法测定液体表面张力实验装置的改进[J].实验室研究与探索,2011,30(12):31-33.PAN Z C,SU X H,ZHANG H H,et al.Improvement of maximum bubble pressure method for determination of liquid surface tension[J].Research and Exploration in Laboratory,2011,30(12):31-33.(in Chinese)
- [3] 王健英,丁越,季晓菁,等.最大气泡法测定液体表面张力的实验改进[J].药学教育,2012,28(6):51-53.WANG J Y,DING Y,JI X J,et al.Improving on the bubble-pressure method experiment to measure surface tension of solution[J].Pharmaceutical Education,2012,28(6):51-53.(in Chinese)
- [4] 姚星星,王宙洋.拉脱法测量液体表面张力系数实验结果分析[J].大学物理实验,2022,35(1):115-118.YAO X X,WANG Z Y.Analysis of experimental results of measuring liquid surface tension coefficient by pull-off method[J].Physical Experiment of College,2022,35(1):115-118.(in Chinese)
- [5] 房若宇,薛迪烜,谢涛,等.拉脱法测量液体表面张力系数的拓展性研究[J].大学物理实验,2022,35(1):30-33.FANG R Y,XUE D X,XIE T,et al.An expansion study of the pull-off method to measure the surface tension coefficient of liquid[J].Physical Experiment of College,2022,35(1):30-33.(in Chinese)
- [6] 胡炜,吕萍,赵贯甲,等.高精度悬滴法液体表面张力实验系统研制[J].实验技术与管理,2015,32(6):69-71,136.HU W,LYU P,ZHAO G J,et al.Development of system with axisymmetric drop shape method for surface tension measurement[J].Experimental Technology and Management,2015,32(6):69-71,136.(in Chinese)
- [7] 陆怿璠,金子程,任文艺,等.基于智能手机和Matlab的居家悬滴法表面张力测量实验[J].大学物理,2023,42(1):48-54.LU Y F,JIN Z C,REN W Y,et al.Pendant drop method to measure surface tension of waterdrops based on smartphone and Matlab at home[J].College Physics,2023,42(1):48-54.(in Chinese)
- [8] 包燊荣.空气粘滞系数的测定[J].九江师专学报,1982(2):45-50.BAO S R.Determination of air viscosity coefficient[J].Journal of Jiujiang Teachers College,1982(2):45-50.(in Chinese)
- [9] 史彭,程贵华.毛细管法测定气体、液体的粘滞系数[J].物理实验,1992(3):116-118.SHI P,CHENG G H.Determination of viscosity coefficient of gas and liquid by capillary method[J].Physical Experiment,1992(3):116-118.(in Chinese)
- [10] 杨厚发,沈云才,陈壮壮,等.利用密立根油滴实验仪测定空气粘滞系数[J].大学物理实验,2023,36(1):12-14.YANG H F,SHEN Y C,CHEN Z Z,et al.Determination of air viscosity coefficient by Millikan oil drop tester[J].Physical Experiment of College,2023,36(1):12-14.(in Chinese)
- [11] SIBAIYA L.Time of collapse of a soap bubble[J].Nature,1942,149(3784):527-527.
- [12] R?MME G.Surface tension from deflating a soap bubble[J].Physics Education.1997,32(3):191.
- [13] ROMáN F L,FARO J,VELASCO S.A simple experiment for measuring the surface tension of soap solutions.American Journal of Physics[J].2001,69(8):920-1.
- [14] JACKSON D P,SLEYMAN S.Analysis of a deflating soap bubble[J].American Journal of Physics.2010,78(10):990-4.
- [15] 王洪伟.我所理解的流体力学[M].2版.北京:国防工业出版社,2019.WANG H W.My understanding of fluid mechanics[M].2nd ed.Beijing:National Defense Industry Press,2019.(in Chinese)
- [16] 杨成斌.基于圆管层流模型的无损流动条件分析[J].科技创新与应用,2022,12(9):26-29.YANG C B.An analysis of lossless flow conditions based on circular tube laminar flow model[J].Technology Innovation and Application,2022,12(9):26-29.(in Chinese)