DOI QR코드

DOI QR Code

CLSVOF 방법을 이용한 액적-벽면 충돌에 관한 수치적 연구

Numerical Study of Droplet Impact on Solid Surfaces Using a Coupled Level Set and Volume-of-Fluid Method

  • 서영호 (서강대학교 대학원 기계공학과) ;
  • 손기헌 (서강대학교 기계공학과)
  • 발행 : 2003.06.01

초록

A level set method is combined with the volume-of-fluid method so that the coupled method can not only calculate an interfacial curvature accurately but also can achieve mass conservation well. The coupled level set and volume-of-fluid(CLSVOF) method is efficiently implemented by employing an interface reconstruction algorithm which is based on the explicit relationship between the interface configuration and the fluid volume function. The CLSVOF method is applied for numerical simulation of droplet impact on solid surfaces with variable contact angles. The numerical results are found to preserve mass conservation and to be in good agreement with the data reported in the literature. Also, the present method proved to be applicable to the complex phenomena such as breakup and rebound of a droplet.

키워드

참고문헌

  1. Harlow, F. H. and Shannon, J. P., 1967, 'The Splash of a Liquid droplet,' J. Appl. Phys., Vol. 38 pp. 3855-3866 https://doi.org/10.1063/1.1709031
  2. Trapaga, G. and Szekely, J., 1991, 'Mathematical Modeling of the Isothermal Impinging of Liquid Droplets in Spray Processes,' Metall. Trans. B, Vol. 22, p. 901-914 https://doi.org/10.1007/BF02651166
  3. Hirt, C. W. and Nichols, B. D., 1981, 'Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries,' J. Comput. Phys., Vol. 39, pp. 201-225 https://doi.org/10.1016/0021-9991(81)90145-5
  4. Fukai, J., Shiiba, Y., Yamamoto, T., Miyatake, O., Poulikakos, D., Megaridis, C. M. and Zhao, Z., 1995, 'Wetting Effects on the Spreding of a Liquid Droplet Colliding with a Flat Surface,' Phys. Fluids., Vol. 7, pp. 236-247 https://doi.org/10.1063/1.868622
  5. Fukai, J., Shiiba, Y. and Miyatake, O., 1997, 'Theoretical Study of Droplet Impingement on a Solid Surface Below the Leidenfrost Temperature,' Int. J. Heat Mass Transfer., Vol. 40, pp. 2490-2492 https://doi.org/10.1016/S0017-9310(96)00264-5
  6. Bussman, M., Mostaghimi. J., Chandra. S., 1999, 'On a Three-Dimensional Volume Tracking Model of Droplet Impact,' Physics of Fluids, Vol. 11, pp. 1406-1417 https://doi.org/10.1063/1.870005
  7. Bussman, M., Chandra. S. and J. Mostaghimi, 2000, 'Modeling the Splash of a Droplet Impacting a Solid Surface,' Physics of Fluids, Vol. 12, pp. 3121-3132 https://doi.org/10.1063/1.1321258
  8. Sussman, M., Smereka, P. and Osher, S., 1994, 'A Level Set Approch for Computing Solution to Incompressible Two-Phase Flow,' J. Comput. Phys., Vol. 114, pp. 146-159 https://doi.org/10.1006/jcph.1994.1155
  9. Sussman, M. and Puckett, E. G., 2000, 'A Coupled Level Set and Volume-of-Fluid Method for Computing 3D and Axisymmetric Incompressible Two-Phase Flows,' J. Comput. Phys., Vol. 162, pp. 301-337 https://doi.org/10.1006/jcph.2000.6537
  10. Puckett, E. G., Almgren, A. S., Bell, J. B., Marcus, D. L. and Rider, W. J., 1997, 'A High-Older Interface Tracking Method for Tracking Fluid Interface in Variable Density Incompressible Flows,' J. Comput. Phys., Vol. 130, pp. 269-282 https://doi.org/10.1006/jcph.1996.5590
  11. Dussan V, E. B. 1979, 'On the Spreading of Liquids on Solid Surface: Static and Dynamic Contact Lines,' Annu. Rev. Fluid Mech. Vol. 11, p. 371-400 https://doi.org/10.1146/annurev.fl.11.010179.002103
  12. Ryskin, G. and Leal, L. G., 1984, 'Numerical Solution of Free-Boundary Problems in Fluid Mechnics. Part 2,' J. Fluid Mech., Vol. 148, pp. 19-35 https://doi.org/10.1017/S0022112084002226
  13. Chandra, S. and Avedisian, C. T., 1991, 'On the Collision of a Droplet with a Solid Surface,' Proceeding of the Royal Society of London A, Vol. 432, pp. 13-41 https://doi.org/10.1098/rspa.1991.0002