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A coupled level set and volume of fluid (CLS-VOF) method is applied to simulate the process of double droplets which continuously impact on a hot liquid film on a wall of constant temperature, and the evolution processes after the double droplets impinge on the hot flat liquid film are studied. Influences of vertical spacing between the two droplets, impact velocity, film thickness and droplet diameter on the flow and heat transfer characteristics are discussed. It is found that the average heat flux density of the wall increases with the rise of impact velocity. The influences of vertical spacing between the two droplets, droplet diameter, and liquid film thickness on the average heat flux density are small, but they have an important effect on the distribution of heat flow density in the impact area and the border area.
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Keywords:
- drop impact /
- CLSVOF /
- liquid film /
- heat transfer
[1] 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 62 024705]
[2] 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 62 084707]
[3] Hu H B, Huang S H, Chen L B 2013 Chin. Phys. B 22 084702
[4] 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]
[5] Pasandideh-Fard M, Aziz S D, Chandra S, Mostaghimi J 2001 Int. J. Heat Fluid Fl. 22 201
[6] Fujimoto H, Ito S, Takezaki I 2002 Exp. Fluids 33 500
[7] Yarin A L 2006 Annu. Rev. Fluid Mech. 38 159
[8] Asadi S, Passandideh-Fard M 2009 Arab. J. Sci. Eng. 34 505
[9] Morton K M, Baines M J 1982 Numerical methods for fluid dynamics (New York: Academic Press) p273
[10] Shen S Q, Cui Y Y, Guo Y L 2009 J. Therm. Sci. Tech. 8 194 (in Chinese) [沈胜强, 崔艳艳, 郭亚丽 2009 热科学与技术 8 194]
[11] Yarin A L, Weiss D A 1995 J. Fluid Mech. 283 141
[12] Liang G T, Shen S Q, Yang Y 2012 J. Therm. Sci. Tech. 11 8 (in Chinese) [梁刚涛, 沈胜强, 杨勇 2012热科学与技术 11 8]
[13] Guo Z Y, Li D Y, Wang B X 1998 Int. J. Heat Mass Tran. 41 2221
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[1] 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 62 024705]
[2] 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 62 084707]
[3] Hu H B, Huang S H, Chen L B 2013 Chin. Phys. B 22 084702
[4] 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]
[5] Pasandideh-Fard M, Aziz S D, Chandra S, Mostaghimi J 2001 Int. J. Heat Fluid Fl. 22 201
[6] Fujimoto H, Ito S, Takezaki I 2002 Exp. Fluids 33 500
[7] Yarin A L 2006 Annu. Rev. Fluid Mech. 38 159
[8] Asadi S, Passandideh-Fard M 2009 Arab. J. Sci. Eng. 34 505
[9] Morton K M, Baines M J 1982 Numerical methods for fluid dynamics (New York: Academic Press) p273
[10] Shen S Q, Cui Y Y, Guo Y L 2009 J. Therm. Sci. Tech. 8 194 (in Chinese) [沈胜强, 崔艳艳, 郭亚丽 2009 热科学与技术 8 194]
[11] Yarin A L, Weiss D A 1995 J. Fluid Mech. 283 141
[12] Liang G T, Shen S Q, Yang Y 2012 J. Therm. Sci. Tech. 11 8 (in Chinese) [梁刚涛, 沈胜强, 杨勇 2012热科学与技术 11 8]
[13] Guo Z Y, Li D Y, Wang B X 1998 Int. J. Heat Mass Tran. 41 2221
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