The seawater surface tension coefficient representation with different salinities

Zhang Zhiyou; Jin Liang'an; Yuan Zhijiang; He Shengyang

doi:10.11729/syltlx20160164

Volume 31 Issue 4

Turn off MathJax

Article Contents

Article Navigation > Journal of Experiments in Fluid Mechanics > 2017 > 31(4): 45-50

Zhang Zhiyou, Jin Liang'an, Yuan Zhijiang, et al. The seawater surface tension coefficient representation with different salinities[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(4): 45-50. doi: 10.11729/syltlx20160164

Citation:

PDF( 1151 KB)

The seawater surface tension coefficient representation with different salinities

doi: 10.11729/syltlx20160164

Department of Navigation, Dalian Naval Academy, Dalian Liaoning 116018, China

Received Date: 2016-10-31
Rev Recd Date: 2017-03-15
Publish Date: 2017-08-25

Abstract

Abstract

To study the seawater surface tension coefficient representation with different salinities and to simplify the test methods, a practical model for the bubble departure volume and the departure instantaneous velocity is built by analyzing the forces experienced by the bubble in the seawater. The underwater gas emission experimental platform is constructed. It uses the normal pressure air and six kinds of salinity seawater as the experiment's gaseous phase and liquid phase. And the bubble motions are categorized as slow motion with low Reynolds number and fast motion with high Reynolds number. Experiments with both bubble motions are conducted. The high-speed photography technology is used to record the bubble motion, and the filmed pictures are analyzed by the MATLAB program, so as to obtain the bubble departure volume and the departure instantaneous velocity. Substituting the experimental data into models, the seawater surface tension coefficient representation with different salinities can be acquired. The result shows that, under the non jet generation and flotation condition, the bubble is of small radius and has slow movement with low Reynolds number. The simulation results are in consistency with the measurement with high credibility and low divergence. The error is less than 2%.
- bubble formation,
- seawater salinity,
- bubble volume,
- bubble rising velocity

FullText(HTML)

References(16)

References

[1]	朱英昊, 康娟, 桑涛, 等.基于光纤干涉法的液体表面张力系数测量及温度影响研究[J].光电子·激光, 2015, (1):130-134. http://www.cnki.com.cn/Article/CJFDTOTAL-GDZJ201501022.htm Zhu Y H, Kang J, Sang T, et al. Liquid surface tension coefficient measurement and temperature impact based on optical interference method[J]. Journal of Optoelectronics Laser, 2015, (1):130-134. http://www.cnki.com.cn/Article/CJFDTOTAL-GDZJ201501022.htm
[2]	Zhang X B, Xiang S J, Cao Q, et al. Effects of surface tension on bubble growth in an extensive uniformly superheated liquid[J]. Chinese Science Bulletin, 2011, 30:3191-3198. doi: 10.1007%2Fs11434-011-4699-1.pdf?origin=publication_detail
[3]	赵贯甲, 毕胜山, 吴江涛.表面光散射法液体黏度和表面张力实验系统研制[J].工程热物理学报, 2015, (1):36-40. http://www.cnki.com.cn/Article/CJFDTOTAL-GCRB201501008.htm Zhao J S, Bi S S, Wu J T. Liquid viscosity and surface tension measurement under saturated condition with surface laser light scattering method[J]. Journal of Engineering Thermophysics, 2015, (1):36-40. http://www.cnki.com.cn/Article/CJFDTOTAL-GCRB201501008.htm
[4]	Mohammed I U, Deeni Y, Hapca S M, et al. Predicting the minimum liquid surface tension activity of pseudomonads expressing biosurfactants[J]. Letters in Applied Microbiology, 2015, 60(1):37-43. doi: 10.1111/lam.2014.60.issue-1
[5]	张鹏.海水表面张力的研究[J].山西师范大学学报(自然科学版), 2011, (4):44-45. http://www.cnki.com.cn/Article/CJFDTOTAL-HYFZ199403011.htm Zhang P. Study on the surface tension of sea water[J]. Journal of Shanxi Normal University Natural Science Edition, 2011, (4):44-45. http://www.cnki.com.cn/Article/CJFDTOTAL-HYFZ199403011.htm
[6]	成娟, 李玲, 刘科.液体表面张力系数与浓度的关系实验研究[J].中国测试, 2014, (3):32-34. doi: 10.11857/j.issn.1674-5124.2014.03.009 Cheng J, Li L, Liu K. Study on the relationship between liquid surface tension and concentration[J]. China Measurement & Test, 2014, (3):32-34. doi: 10.11857/j.issn.1674-5124.2014.03.009
[7]	Trybula M E, Gancarz T, Gasior W. Density, surface tension and viscosity of liquid binary Al-Zn and ternary Al-Li-Zn alloys[J]. Fluid Phase Equilibria, 2016, 421:39-48. http://linkinghub.elsevier.com/retrieve/pii/S0378381216301418
[8]	Zhang X B, Xiang S J, Cao X L, et al. Effects of surface tension on bubble growth in an extensive uniformly superheated liquid[J]. Chinese Science Bulletin, 2011, 30:3191-3198. doi: 10.1007/s11434-011-4699-1?view=classic
[9]	田恒斗, 金良安, 王涌, 等.考虑单气泡运动特性的舰船尾流气泡分布研究[J].兵工学报, 2011, (9):1126-1130. http://www.cnki.com.cn/Article/CJFDTOTAL-BIGO201109015.htm Tian H D, Jin L A, Wang Y, et al. Study on wake bubble distribution based on single bubble motion characteristics[J]. Acta Armamentarii, 2011, (9):1126-1130. http://www.cnki.com.cn/Article/CJFDTOTAL-BIGO201109015.htm
[10]	薛婷, 孟欣东, 张涛.气液两相流中气泡形态及运动特征参数提取[J].光电子·激光, 2010, (8):1218-1221. http://www.cnki.com.cn/Article/CJFDTOTAL-GDZJ201008028.htm Xue T, Meng X D, Zhang T. Extraction of bubble shape and motion feature parameters in the gas-liquid two-phase flow[J]. Journal of Optoelectronics Laser, 2010, (8):1218-1221. http://www.cnki.com.cn/Article/CJFDTOTAL-GDZJ201008028.htm
[11]	代晓巍, 金良安, 迟卫, 等.基于双向图像的水中上升气泡溶解速率分析技术[J].化工学报, 2011, (2):315-320. http://www.cnki.com.cn/Article/CJFDTOTAL-HGSZ201102005.htm Dai X W, Jin L A, Chi W, et al. Analysis technique to dissolution rate of rising bubble in water based on two-direction images[J]. CIESC Journal, 2011, (2):315-320. http://www.cnki.com.cn/Article/CJFDTOTAL-HGSZ201102005.htm
[12]	Chen B B, Zou D H. Altered seawater salinity levels affected growth and photosynthesis of Ulva fasciata(Ulvales, Chlorophyta)germlings[J]. Acta Oceanologica Sinica, 2015, (8):108-113. doi: 10.1007/s13131-015-0654-3
[13]	陈世哲, 刘世萱, 范秀涛, 等.基于棱镜模型多次折射法的海水盐度检测系统[J].光学学报, 2011, (7):22-26. http://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201107006.htm Chen S Z, Liu S X, Fan X T, et al. Seawater salinity measurement system based on prism model multi-refraction[J]. Acta Optica Sinica, 2011, (7):22-26. http://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201107006.htm
[14]	田恒斗, 金良安, 迟卫, 等. Basset力对液体中易溶性气泡运动的影响[J].力学学报, 2011, (4):680-687. doi: 10.6052/0459-1879-2011-4-lxxb2010-069 Tian H D, Jin L A, Chi W, et al. Impact of basset force on the movement of soluble bubble in fluid[J]. Chinese Journal of Theoretical and Applied Mechanics, 2011, (4):680-687. doi: 10.6052/0459-1879-2011-4-lxxb2010-069
[15]	赵勇, 胡开博, 陈世哲, 等.海水盐度检测技术的最新进展[J].光电工程, 2008, (11):38-44. doi: 10.3969/j.issn.1003-501X.2008.11.009 Zhao Y, Hu K B, Chen S Z, et al. Recent development of the seawater salinity measurement technology[J]. Opto-Electronic Engineering, 2008, (11):38-44. doi: 10.3969/j.issn.1003-501X.2008.11.009
[16]	程文, 周孝德, 郭瑾珑, 等.水中气泡上升速度的实验研究[J].西安理工大学学报, 2000, 16(1):57-60. http://www.cnki.com.cn/Article/CJFDTOTAL-XALD200001012.htm Chen W, Zhou X D, Guo J L, et al. Experimental study of the velocity of bubble rising in water[J]. Journal of Xi'an University of Technology, 2000, 16(1):57-60. http://www.cnki.com.cn/Article/CJFDTOTAL-XALD200001012.htm