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本文采用耗散粒子动力学方法, 研究了恒定外力驱动下液滴在有结构壁面上的运动过程. 通过研究液滴在通过壁面结构时前缘接触点和前进角的变化, 分析了液滴的运动特征. 研究结果表明, 在不同润湿性或不同外力驱动下, 存在使液滴运动最快的“最优”壁面结构, 并对其机理进行了讨论. 本文还探讨了壁面润湿性、热涨落以及外力对液滴运动状态的影响.
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关键词:
- 微流体 /
- 有结构壁面 /
- 润湿性 /
- 耗散粒子动力学(DPD)
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[2] de Gans B J, Schubert U S 2003 Macromol. Rapid. Commun. 24 659
[3] Chaudhury M K, Whitesides G M 1992 Science 256 5063
[4] Das A, Das P 2010 Langmuir 26 9547
[5] Shi Z Y, Hu G H, Zhou Z W 2010 Acta. Phys. Sin. 59 2595 (in Chinese) [石自媛, 胡国辉, 周哲玮 2010 物理学报 59 2595]
[6] Li Z 2011 Ph.D. Dissertation (Shanghai: Shanghai University) (in Chinese) [李振 2011 博士学位论文 (上海: 上海大学)]
[7] Cassie A, Baxter S 1944 Tran. Fara. Soci. 40 546
[8] Ou J, Perot B, Rothstein J P 2004 Phys.Fluids 16 4635
[9] Davies J, Maynes D, Webb B, Woolford B 2006 Phys.Fluids. 18 087110
[10] Ou J, Rothstein JP 2005 Phy. Fluids. 17 103606
[11] Johnson Jr R, Dettre R 1964 Adv. Chem. Ser. 43 112
[12] Zu Y, Yan Y, Li J, Han Z 2010 J.Bionic. Eng. 7 191
[13] Huang J J, Shu C, Chew Y, Zheng H 2007 Int. J. Modern Phys. C 18 492
[14] Huang J J, Shu C, Chew YT 2009 Phy. Fluids 21 022103
[15] Yang C W, He F, Hao P F 2010 Science In China 10 1545 (in Chinese) [杨常卫, 何枫, 郝鹏飞 2010 中国科学 10 1545]
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[20] Hardy J, De Pazzis O, Pomeau Y 1976 Phys. Rev. A 13 1949
[21] Groot R D, Madden T J 1998 J. Chem. Phy. 108 8713
[22] Espańol P 1996 Phys. Rev. E 53 1572
[23] Jiang W, Huang J, Wang Y, Laradji M J. Chem. Phys. 126 044901
[24] Chen S, Shang Z, Zhao Y 2010 J. Tongji. University 38 767 (in Chinese) [陈硕, 尚智, 赵岩, 王丹 2010 同济大学学报 38 767]
[25] Liba O, Kauzlarić D, Abrams Z R, Hanein Y, Greiner A, Korvink J G 2008 Mol. Simulat. 34 737
[26] Li Z, Zhou Z W, Hu G H 2012 J. Adhes. Sci. Technol. 26 1883
[27] Li H X, Qiang H F 2009 Adv. Mech. 39 165 (in Chinese) [李红霞, 强洪夫 2009 力学进展 39 165]
[28] Chen S, Zhao Y, Fan X J 2006 Bull. Sci. Tech. 22 596 (in Chinese) [陈硕, 赵钧, 范西俊 2006 科技通报 22 596]
[29] Li Z, Hu G H, Zhou Z W 2009 Mechanics and Engineering (in Chinese) [李振, 胡国辉, 周哲玮 2009 力学与工程]
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[31] Rauscher M, Dietrich S 2008 Annu. Rev. Mater. Res. 38 143
[32] Moseler M, Landman U 2000 Sci. 289 1165
[33] Groot R D, Warren P B 1997 J. Chem. Phys. 107 4423
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[37] Liu M B, Meakin P, Huang H 2006 Phys. Fluids 18 017101
[38] Chang J Z, Liu M B, Liu H T 2008 Acta. Phys. Sin. 57 3954 (in Chinese) [常建忠, 刘谋斌, 刘汉涛 2008 物理学报 57 3954]
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[41] Tiwari A, Abraham J 2008 Microfluid. Nanofluid 4 227
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[43] Espanol P, Warren P 1995 Europhys. Lett. 30 191
[44] Merabia S, Pagonabarraga I 2006 Eur. Phys. J. E 20 209
[45] Revenga M, Zuniga I, Espanol P 1998 Int. J. Mod. Phys. 9 1319
[46] Nikunen P, Karttunen M, Vattulainen I 2003 Comput. Phys. Commun. 153 407
[47] Marmur A 2006 Soft. Matter. 2 12
[48] Decker E, Frank B, Suo Y, Garoff S 1999 Colloids. Sur. A 156 177
[49] Wenzel R N 1994 J. Phys. Chem. 53 1466
[50] Patankar N A 2004 Langmuir. 20 7097
-
[1] Fan X, Phan-Thien N, Chen S, Wu X, Ng T Y 2006 Phys. Fluids. 18 063102
[2] de Gans B J, Schubert U S 2003 Macromol. Rapid. Commun. 24 659
[3] Chaudhury M K, Whitesides G M 1992 Science 256 5063
[4] Das A, Das P 2010 Langmuir 26 9547
[5] Shi Z Y, Hu G H, Zhou Z W 2010 Acta. Phys. Sin. 59 2595 (in Chinese) [石自媛, 胡国辉, 周哲玮 2010 物理学报 59 2595]
[6] Li Z 2011 Ph.D. Dissertation (Shanghai: Shanghai University) (in Chinese) [李振 2011 博士学位论文 (上海: 上海大学)]
[7] Cassie A, Baxter S 1944 Tran. Fara. Soci. 40 546
[8] Ou J, Perot B, Rothstein J P 2004 Phys.Fluids 16 4635
[9] Davies J, Maynes D, Webb B, Woolford B 2006 Phys.Fluids. 18 087110
[10] Ou J, Rothstein JP 2005 Phy. Fluids. 17 103606
[11] Johnson Jr R, Dettre R 1964 Adv. Chem. Ser. 43 112
[12] Zu Y, Yan Y, Li J, Han Z 2010 J.Bionic. Eng. 7 191
[13] Huang J J, Shu C, Chew Y, Zheng H 2007 Int. J. Modern Phys. C 18 492
[14] Huang J J, Shu C, Chew YT 2009 Phy. Fluids 21 022103
[15] Yang C W, He F, Hao P F 2010 Science In China 10 1545 (in Chinese) [杨常卫, 何枫, 郝鹏飞 2010 中国科学 10 1545]
[16] Yao Z H, Hao P F, Zhang X W, He F 2012 Chinese. Sci. Bull. 57 1095
[17] Zhang M K, Chen S, Shang Z 2012 Acta. Phys. Sin. 61 34701 (in Chinese) [张明焜, 陈硕, 尚智 2012 物理学报 61 34701]
[18] Hoogerbrugge P J, Koelman J 1992 Europhys. LeTt. 19 155
[19] Rapaport D C 2004 The art of molecular dynamics simulation (England: Cambridge university press) p12
[20] Hardy J, De Pazzis O, Pomeau Y 1976 Phys. Rev. A 13 1949
[21] Groot R D, Madden T J 1998 J. Chem. Phy. 108 8713
[22] Espańol P 1996 Phys. Rev. E 53 1572
[23] Jiang W, Huang J, Wang Y, Laradji M J. Chem. Phys. 126 044901
[24] Chen S, Shang Z, Zhao Y 2010 J. Tongji. University 38 767 (in Chinese) [陈硕, 尚智, 赵岩, 王丹 2010 同济大学学报 38 767]
[25] Liba O, Kauzlarić D, Abrams Z R, Hanein Y, Greiner A, Korvink J G 2008 Mol. Simulat. 34 737
[26] Li Z, Zhou Z W, Hu G H 2012 J. Adhes. Sci. Technol. 26 1883
[27] Li H X, Qiang H F 2009 Adv. Mech. 39 165 (in Chinese) [李红霞, 强洪夫 2009 力学进展 39 165]
[28] Chen S, Zhao Y, Fan X J 2006 Bull. Sci. Tech. 22 596 (in Chinese) [陈硕, 赵钧, 范西俊 2006 科技通报 22 596]
[29] Li Z, Hu G H, Zhou Z W 2009 Mechanics and Engineering (in Chinese) [李振, 胡国辉, 周哲玮 2009 力学与工程]
[30] Davidovitch B, Moro E, Stone H A 2005 Phys. Rev. Lett. 95 244505
[31] Rauscher M, Dietrich S 2008 Annu. Rev. Mater. Res. 38 143
[32] Moseler M, Landman U 2000 Sci. 289 1165
[33] Groot R D, Warren P B 1997 J. Chem. Phys. 107 4423
[34] Warren P B 2003 Phys. Rev. E 68 066702
[35] Liu M B, Meakin P, Huang H 2007 J. Computational. Phys. 222 110
[36] Liu M B, Meakin P, Huang H 2007 Phys. Fluids 19 033302
[37] Liu M B, Meakin P, Huang H 2006 Phys. Fluids 18 017101
[38] Chang J Z, Liu M B, Liu H T 2008 Acta. Phys. Sin. 57 3954 (in Chinese) [常建忠, 刘谋斌, 刘汉涛 2008 物理学报 57 3954]
[39] Wang X L, Chen S 2010 Acta. Phys. Sin. 10 6778 (in Chinese) [王晓亮, 陈硕 2010 物理学报 10 6778]
[40] Cupelli C, Henrich B, Glatzel T, Zengerle R, Moseler M, Santer M 2008 New. J. Phys. 10 043009
[41] Tiwari A, Abraham J 2008 Microfluid. Nanofluid 4 227
[42] Pagonabarraga I, Frenkel D 2001 J. Chem. Phys. 115 5015
[43] Espanol P, Warren P 1995 Europhys. Lett. 30 191
[44] Merabia S, Pagonabarraga I 2006 Eur. Phys. J. E 20 209
[45] Revenga M, Zuniga I, Espanol P 1998 Int. J. Mod. Phys. 9 1319
[46] Nikunen P, Karttunen M, Vattulainen I 2003 Comput. Phys. Commun. 153 407
[47] Marmur A 2006 Soft. Matter. 2 12
[48] Decker E, Frank B, Suo Y, Garoff S 1999 Colloids. Sur. A 156 177
[49] Wenzel R N 1994 J. Phys. Chem. 53 1466
[50] Patankar N A 2004 Langmuir. 20 7097
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