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基于疏水固壁改性会引起润湿性反转的特点，采用考虑固体与液体间分子力的格子Boltzmann方法，从壁面的线性和瞬时改性两方面对润湿性反转现象进行了数值模拟，并结合流体体积方法处理界面层质量. 结果表明：壁面线性改性的过程中润湿性反转变化平稳，润湿所需时间大幅减少，所得到的接触角与固液吸引力系数的关系与其他文献结果一致；壁面瞬时改性幅度越大说明固壁对液滴作用力越强，表现为润湿性变化越明显，瞬时改性后接触角随时间呈指数规律变化，这与现有结论相符合. 研究发现：在改性条件下液膜铺展过程中伴随着振荡变化，线性改性的振动峰值与改性幅度相关；瞬时改性的液膜速度会在某一时刻突然增大，这种现象与夹带空气有关.
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关键词:
- 改性疏水固壁 /
- 润湿性反转 /
- 格子Boltzmann方法 /
- 数值模拟
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[1] Sun Z H, Han R J 2008 Chin. Phys. B 17 3185
[2] Shen Z Y, He Y 2012 Chin. Phys. Lett. 29 024703
[3] Mahmood R S, Sonia B, Luc G F 2012 Appl. Surf. Sci. 258 6416
[4] Tsekova R, Borissovb D, Karakasheva S I 2013 Colloids Surf. A 423 77
[5] Lee K S, Starov V M 2009 J. Colloid Interf. Sci. 329 3615
[6] Winkels K G, Weijs J H, Eddi A, Snoeijer J H 2012 Phys. Rev. E 85 055301
[7] Beacham D R, Matar O K 2009 Langmuir 25 14174
[8] Liu S S, Zhang C H, Zhang H B, Zhou J, He J G, Yin H Y 2013 Chin. Phys. B 22 106801
[9] Zhu X T, Zhang Z Z, Men X H, Yang J, Xu X H, Zhu X T, Xue Q J 2011 Appl. Surf. Sci. 257 3753
[10] Bi F F, Guo Y L, Shen S Q, Chen J X 2012 Acta Phys. Sin. 61 184702 (in Chinese) [毕菲菲, 郭亚丽, 沈胜强, 陈觉先 2012 物理学报 61 184702]
[11] Yang J, Zhang Z Z, Men X H, Xu X H, Zhu X T 2011 Carbon 49 19
[12] Gao Y F, Sun D Y 2010 Chin. Phys. Lett. 27 066802
[13] Gong M G, Liu Y Y, Xu X L 2010 Chin. Phys. B 19 106801
[14] Su T X, Ma L Q, Liu M B, Chang J Z 2013 Acta Phys. Sin. 62 064702 (in Chinese) [苏铁熊, 马理强, 刘谋斌, 常建忠 2013 物理学报 62 064702]
[15] Wang J F, Sun F X, Cheng R J 2010 Chin. Phys. B 19 060201
[16] McNamara G R, Zanetti G 1988 Phys. Rev. Lett. 61 2332
[17] Dupuis A, Yeomans J M 2005 Langmuir 21 2624
[18] Wang W X, Shi J, Qiu B, Li H B 2010 Acta Phys. Sin. 59 8371 (in Chinese) [王文霞, 施娟, 邱冰, 李华兵 2010 物理学报 59 8371]
[19] Sun D K, Jiang D, Xiang N, Chen K, Ni Z H 2013 Chin. Phys. Lett. 30 074702
[20] Kawasaki A, Onishi J, Chen Y, Ohashi H 2007 Comp. Math. Appl. 55 1492
[21] Xing X Q, Butler D L, Yang C 2006 Comp. Math. Sci. 7 1
[22] Kang Q, Zhang D, Chen S 2002 Phys. Fluids 14 3203
[23] 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]
[24] Zhang J F, Li B M, Kwok D Y 2004 Phys. Rev. E 69 032602
[25] Ginzburg I, Steiner K 2003 J. Comput. Phys. 185 61
[26] Zhang M L, Hao Z N, Zhang Y P 2013 Acta Oceanol. Sin. 32 38
[27] Ding Q L, Wang D G, Wang L L 2010 Shuili Xuebao 8 991 (in Chinese) [丁全林, 汪德爟, 王玲玲 2010 水利学报 8 991]
[28] Liu Q Z, Kou Z M, Han Z N, Gao G J 2013 Acta Phys. Sin. 62 234701 (in Chinese) [刘邱祖, 寇子明, 韩振南, 高贵军 2013 物理学报 62 234701]
[29] Xiong J B, Seiichi K, Mikio S 2011 J. Nucl. Sci. Technol. 48 145
[30] Lee K S, Ivanova N, Starov V M, Hilal N, Dutschk V 2008 Adv. Colloid Interf. Sci. 144 54
[31] Li H, Zheng M J, Liu S D, Ma L, Zhu C Q, Xiong Z Z 2013 Surf. Coat. Technol. 224 88
[32] Liu S S, Zhang C H, He J G, Zhou J, Yin H Y 2013 Acta Phys. Sin. 62 206201 (in Chinese) [刘思思, 张朝辉, 何建国, 周杰, 尹恒洋 2013 物理学报 62 206201]
[33] Siddhartha F L, Vivek V B, Nigam K D P 2007 Chem. Eng. Sci. 62 7214
[34] Hu G H, Xu A J, Xu Z, Zhou Z W 2008 Phys. Fluids 20 102101
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