수정된 CIP방법을 이용한 벽면 충돌 후 액적의 퍼짐 현상에 대한 수치해석 연구

NUMERICAL STUDY ON DROPLET SPREAD MOTION AFTER IMPINGEMENT ON THE WALL USING IMPROVED CIP METHOD

  • 손소연 (중앙대학교 공과대학 기계공학부) ;
  • 고권현 (동양대학교 건축소방행정학과) ;
  • 이성혁 (중앙대학교 공과대학 기계공학부) ;
  • 유홍선 (중앙대학교 공과대학 기계공학부)
  • 투고 : 2010.06.14
  • 심사 : 2010.10.29
  • 발행 : 2010.12.31

초록

Interface tracking of two phase is significant to analyze multi-phase phenomena. The VOF(Volume of Fluid) and level set are well known interface tracking method. However, they have limitations to solve compressible flow and incompressible flow at the same time. CIP(Cubic Interpolate Propagation) method is appropriate for considering compressible and incompressible flow at once by solving the governing equation which is divided up into advection and non-advection term. In this article, we analyze the droplet impingement according to various We number using improved CIP method which treats nonlinear term once more comparison with original CIP method. Furthermore, we compare spread radius after droplet impingement on the wall with the experimental data and original CIP method. The result using improved CIP method shows the better result of the experiments, comparison with result of original CIP method, and it reduces the mass conservation error which is generated in the numerical analysis comparison with original CIP method.

키워드

참고문헌

  1. 1981, Hirt, C.W. and Nichols, B.D., "Volume of fluid (VOF) method for the dynamics of free boundaries," J. Comp. Phys., Vol.39, pp.201-225. https://doi.org/10.1016/0021-9991(81)90145-5
  2. 1994, Sussman, M., Smereka, P. and Osher, S., "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
  3. 1985, Takewaki, H., Nishiguchi, A. and Yabe, T., "Cubic Interpolated Pseudo-particle Method (CIP), for Solving Hyperbolic-type Equations," J. Comp. Phys., Vol.61, pp.261-268. https://doi.org/10.1016/0021-9991(85)90085-3
  4. 1991, Yabe, T., "A universal solver for hyperbolic equations by cubic-polynomial interpolation I. One-dimensional solver," Comput. Phys. Communications, Vol.66, pp.219-232. https://doi.org/10.1016/0010-4655(91)90071-R
  5. 1995, Yabe, T. and Xiao, F., "Description of complex and sharp interface with fixed grids in incompressible and compressible fluid," Computers Math. Applic, Vol.29, pp.15-25.
  6. 2003, Lee, J.H., Kang, J., Im, D. and Kim, C.J., "Analysis of the Flow in Square Cavity Using CIP method in Non-staggered Grid Arrangement," KSME(B) spring conference, pp.1821-1826.
  7. 2009, 이정희, 허남건, "CIP 방법을 사용한 해석법," 한국전산유체공학회 2009년도추계학술대회논문집, pp.211-217.
  8. 1992, Brackbill, J.U., Kothe, D.B. and Zemach, C., "A Continuum Method for Modeling Surface Tension," J. Comp. Phys., Vol.100, pp.335-354. https://doi.org/10.1016/0021-9991(92)90240-Y