液滴低速撞击润湿球面现象观测分析

梁刚涛; 郭亚丽; 沈胜强

doi:10.7498/aps.62.184703

摘要

采用高速摄像仪以10000 帧/s的拍摄速度对液滴低速撞击润湿球体表面过程进行了实验观测, 分析了液滴撞击后的反弹、局部反弹和铺展等现象, 考察了黏度对撞击过程的影响; 在此基础上, 定量讨论了液滴铺展特征参数随撞击速度、球体直径和黏度的变化规律. 观测发现: 黏度较大且撞击速度较低时, 撞击后可能出现反弹和局部反弹, 黏度较小时则不发生; 铺展面积随撞击速度的增大而增大; 黏度增大时, 铺展因子减小; 在球体直径为4–20 mm范围内, 随着球体直径的增加, 铺展因子呈上升趋势.

关键词:

液滴撞击 /
润湿球面 /
铺展 /
黏度

Abstract

The phenomenon of liquid drop impact on wetted spherical surfaces with low impact velocity is observed using a high speed digital camera at 10000 frames per second. Drop rebound, partial rebound and spreading are observed and analyzed, considering the effect of viscosity. Influences of the sphere diameter, impact velocity and viscosity on the spreading characteristic parameter are discussed quantitatively. The experimental observations show that the drop rebound and partial rebound phenomena may occur at large viscosity and low impact velocity, which cannot be observed at small viscosity. The spreading area can be increased by increasing impact velocity. The results also reveal that the spreading factor increases with viscosity decreasing. At the sphere diameters ranging from 4 mm to 20 mm, it is found that with the increase of the sphere diameter, the spreading factor will be increased.

Keywords:

作者及机构信息

1.
大连理工大学能源与动力学院, 辽宁省海水淡化重点实验室, 大连 116024

基金项目: 国家自然科学基金(批准号:51176017)资助的课题.

Authors and contacts

1.
School of Energy and Power Engineering, Dalian University of Technology, Key Laboratory for Desalination of Liaoning Province, Dalian 116024, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 51176017)

参考文献

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[2]	Cossali G E, Coghe A, Marengo M 1997 Exp. Fluids 22 463
[3]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 33
[4]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 53
[5]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 23
[6]	Okawa T, Shiraishi T, Mori T 2006 Exp. Fluids 41 965
[7]	Rioboo R, Bauthier C, Conti J, Voué M, De Coninck J 2003 Exp. Fluids 35 648
[8]	Yarin A L, Weiss D A 1995 J. Fluid Mech. 283 141
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[13]	Liang G T, Shen S Q, Yang Y 2012 J. Therm. Sci. Technol. 11 8 (in Chinese) [梁刚涛, 沈胜强, 杨勇 2012 热科学与技术 11 8]
[14]	Ma L Q, Chang J Z, Liu H T, Liu M B 2012 Acta Phys. Sin. 61 054701 (in Chinese) [马理强, 常建忠, 刘汉涛, 刘谋斌 2012 物理学报 61 054701]
[15]	Ma L Q, Liu M B, Chang J Z, Su T X, Liu H T 2012 Acta Phys. Sin. 61 244701 (in Chinese) [马理强, 刘谋斌, 常建忠, 苏铁熊, 刘汉涛 2012 物理学报 61 244701]
[16]	Tang B, Li J F, Wang T S 2008 Acta Phys. Sin. 57 6722 (in Chinese) [汤波, 李俊峰, 王天舒 2008 物理学报 57 6722]
[17]	Bakshi S, Roisman I, Tropea C 2007 Phys. Fluids 19 032102
[18]	Hardalupas Y, Taylor A M K P, Wilkins J H 1999 Int. J. Heat Fluid Fl. 20 477
[19]	Hung L S, Yao S C 1999 Int. J. Multiphas. Flow 25 1545
[20]	Pasandideh-Fard M, Bussmann M, Chandra S, Mostaghimi J 2001 Atomization Spray. 11 397
[21]	Shen S, Bi F, Guo Y 2012 Int. J. Heat Mass Trans. 55 6938
[22]	Rioboo R, Marengo M, Tropea C 2002 Exp. Fluids 33 112
[23]	Stow C D, Hadfield M G 1981 Proc. R. Soc. A: Math. Phys. Sci. 373 419
[24]	Mundo C, Sommerfeld M, Tropea C 1995 Int. J. Multiphas. Flow 21 151
[25]	Bi F F, Guo Y L, Shen S Q, Chen J X, Li Y Q 2012 Acta Phys. Sin. 61 184702 (in Chinese) [毕菲菲, 郭亚丽, 沈胜强, 陈觉先, 李熠桥 2012 物理学报 61 184702]

施引文献

[1]	Sun Z H, Han R J 2008 Chin. Phys. B 17 3185
[2]	Cossali G E, Coghe A, Marengo M 1997 Exp. Fluids 22 463
[3]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 33
[4]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 53
[5]	Vander Wal R, Berger G, Mozes S 2006 Exp. Fluids 40 23
[6]	Okawa T, Shiraishi T, Mori T 2006 Exp. Fluids 41 965
[7]	Rioboo R, Bauthier C, Conti J, Voué M, De Coninck J 2003 Exp. Fluids 35 648
[8]	Yarin A L, Weiss D A 1995 J. Fluid Mech. 283 141
[9]	Liang G T, Shen S Q, Guo Y L, Chen J X, Yu H, Li Y Q 2013 Acta Phys. Sin. 62 084707 (in Chinese) [梁刚涛, 沈胜强, 郭亚丽, 陈觉先, 于欢, 李熠桥 2013 物理学报 62 084707]
[10]	Chowdhury D, Sarkar S P, Kalita D, Sarma T K, Paul A, Chattopadhyay A 2004 Langmuir 20 1251
[11]	Thoroddsen S T 2002 J. Fluid Mech. 451 373
[12]	Liang G T, Guo Y L, Shen S Q 2013 Acta Phys. Sin. 62 024705 (in Chinese) [梁刚涛, 郭亚丽, 沈胜强 2013 物理学报 62 024705]
[13]	Liang G T, Shen S Q, Yang Y 2012 J. Therm. Sci. Technol. 11 8 (in Chinese) [梁刚涛, 沈胜强, 杨勇 2012 热科学与技术 11 8]
[14]	Ma L Q, Chang J Z, Liu H T, Liu M B 2012 Acta Phys. Sin. 61 054701 (in Chinese) [马理强, 常建忠, 刘汉涛, 刘谋斌 2012 物理学报 61 054701]
[15]	Ma L Q, Liu M B, Chang J Z, Su T X, Liu H T 2012 Acta Phys. Sin. 61 244701 (in Chinese) [马理强, 刘谋斌, 常建忠, 苏铁熊, 刘汉涛 2012 物理学报 61 244701]
[16]	Tang B, Li J F, Wang T S 2008 Acta Phys. Sin. 57 6722 (in Chinese) [汤波, 李俊峰, 王天舒 2008 物理学报 57 6722]
[17]	Bakshi S, Roisman I, Tropea C 2007 Phys. Fluids 19 032102
[18]	Hardalupas Y, Taylor A M K P, Wilkins J H 1999 Int. J. Heat Fluid Fl. 20 477
[19]	Hung L S, Yao S C 1999 Int. J. Multiphas. Flow 25 1545
[20]	Pasandideh-Fard M, Bussmann M, Chandra S, Mostaghimi J 2001 Atomization Spray. 11 397
[21]	Shen S, Bi F, Guo Y 2012 Int. J. Heat Mass Trans. 55 6938
[22]	Rioboo R, Marengo M, Tropea C 2002 Exp. Fluids 33 112
[23]	Stow C D, Hadfield M G 1981 Proc. R. Soc. A: Math. Phys. Sci. 373 419
[24]	Mundo C, Sommerfeld M, Tropea C 1995 Int. J. Multiphas. Flow 21 151
[25]	Bi F F, Guo Y L, Shen S Q, Chen J X, Li Y Q 2012 Acta Phys. Sin. 61 184702 (in Chinese) [毕菲菲, 郭亚丽, 沈胜强, 陈觉先, 李熠桥 2012 物理学报 61 184702]

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