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The dynamics of a drop on a mesoscopic scale is investigated by using the many-body dissipative particle dynamic (MDPD) method. The formation of liquid-vapor coexistence interface in the MDPD system is explored. The simulations of the pressure inside/outside the drop and the surface tension are carried out, and it is verified that Laplace’s law is satisfied in our simulation. Different contact angles are obtained by changing conservative interaction parameters between particles. The relationship between MDPD paremeters and contact angles is discussed. Based on the results, the flow behaviors of a drop moving in grooved microcannels are simulated. The results in this paper are useful in studying the fluid with free surfaces flow behavior on rough surface.
[1] Fan X J, Phan-Thien N, Chen S, Wu X, Ng T Y 2006 Phys. Fluids 18 063102
[2] Yun K S, Cho I J, Bu J U, Kim C J, Yoon E 2002 J. Microelectromechanical. Sys. 11 454
[3] Guo J H, Dai S Q, Dai Q 2010 Acta Phys. Sin. 59 2601 (in Chinese) [郭加宏, 戴世强, 代钦 2010 59 2601]
[4] Karniadakis G, Beskok A 2002 Micro Flows: Fundamental and Sinulation (New York: Springer.)
[5] Gad-el-Hak M 2001 Mécaniq. Indust. 2 313
[6] Alexander F J, Garcia A L 1997 Comput. Phys. 11 588
[7] Cao L X, Wang C Y 2007 Acta Phys. Sin. 56 413 (in Chinese) [曹莉霞, 王崇愚 2007 56 413]
[8] Lim C Y, Shu C, Niu X D, Chew Y T 2002 Phys. Fluids 14 2299
[9] Hoogerbrugge P J, Koelman J M V A 1992 Europhys. Lett. 19 155
[10] 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 59 2595]
[11] Cao B Y, Chen M, Guo Z Y 2006 Acta Phys. Sin. 55 5305 (in Chinese) [曹炳阳, 陈民, 过增元 2006 55 5305]
[12] Maesh C A 1998 Ph. D. Dissertation (London: University of Oxford)
[13] Espanol P, Serrano M, Zuniga I 1997 Int. J. Modern Phys. C 8 592
[14] Liu M B, Meakin P, Huang H 2007 J. Computational. Phys. 222 110
[15] Liu M B, Meakin P, Huang H 2006 Phys. Fluids 18 017101
[16] Liu M B, Meakin P, Huang H 2007 Phys. Fluids 19 033302
[17] 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 57 3954]
[18] Wang X L, Chen S 2010 Acta Phys. Sin. 59 6778 (in Chinese) [王晓亮, 陈硕 2010 59 6778]
[19] Zhang M K, Chen S, Shang Z 2012 Acta Phys. Sin. 61 034701 (in Chinese) [张明焜, 陈硕, 尚智 2012 61 034701]
[20] Pagonabarraga I, Frenkel D 2001 J. Phys. Chem. 115 5015
[21] Li Z, Zhou Z W, Hu G H 2012 J. Adhes. Sci. Technol. 26 1883
[22] Espanol P, Warren P 1995 Europhys. Lett. 30 191
[23] Arienti M, Pan W, Li X, Karniadakis G 2011 J. Chem. Phys. 134 204114
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[1] Fan X J, Phan-Thien N, Chen S, Wu X, Ng T Y 2006 Phys. Fluids 18 063102
[2] Yun K S, Cho I J, Bu J U, Kim C J, Yoon E 2002 J. Microelectromechanical. Sys. 11 454
[3] Guo J H, Dai S Q, Dai Q 2010 Acta Phys. Sin. 59 2601 (in Chinese) [郭加宏, 戴世强, 代钦 2010 59 2601]
[4] Karniadakis G, Beskok A 2002 Micro Flows: Fundamental and Sinulation (New York: Springer.)
[5] Gad-el-Hak M 2001 Mécaniq. Indust. 2 313
[6] Alexander F J, Garcia A L 1997 Comput. Phys. 11 588
[7] Cao L X, Wang C Y 2007 Acta Phys. Sin. 56 413 (in Chinese) [曹莉霞, 王崇愚 2007 56 413]
[8] Lim C Y, Shu C, Niu X D, Chew Y T 2002 Phys. Fluids 14 2299
[9] Hoogerbrugge P J, Koelman J M V A 1992 Europhys. Lett. 19 155
[10] 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 59 2595]
[11] Cao B Y, Chen M, Guo Z Y 2006 Acta Phys. Sin. 55 5305 (in Chinese) [曹炳阳, 陈民, 过增元 2006 55 5305]
[12] Maesh C A 1998 Ph. D. Dissertation (London: University of Oxford)
[13] Espanol P, Serrano M, Zuniga I 1997 Int. J. Modern Phys. C 8 592
[14] Liu M B, Meakin P, Huang H 2007 J. Computational. Phys. 222 110
[15] Liu M B, Meakin P, Huang H 2006 Phys. Fluids 18 017101
[16] Liu M B, Meakin P, Huang H 2007 Phys. Fluids 19 033302
[17] 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 57 3954]
[18] Wang X L, Chen S 2010 Acta Phys. Sin. 59 6778 (in Chinese) [王晓亮, 陈硕 2010 59 6778]
[19] Zhang M K, Chen S, Shang Z 2012 Acta Phys. Sin. 61 034701 (in Chinese) [张明焜, 陈硕, 尚智 2012 61 034701]
[20] Pagonabarraga I, Frenkel D 2001 J. Phys. Chem. 115 5015
[21] Li Z, Zhou Z W, Hu G H 2012 J. Adhes. Sci. Technol. 26 1883
[22] Espanol P, Warren P 1995 Europhys. Lett. 30 191
[23] Arienti M, Pan W, Li X, Karniadakis G 2011 J. Chem. Phys. 134 204114
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