Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Filling and Solidification Process During Gravity Casting Using Implicit VOF Method

암시적 VOF법을 이용한 중력주조에서의 충전 및 응고과정에 대한 연구

  • 임익태 (한양대학교 대학원 기계공학과) ;
  • 김우승 (한양대학교 기계공학과)
  • Published : 2000.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a three-dimensional gravity casting problem has been examined to investigate a coupled phenomenon of the filling and solidification process. This work simultaneously considers the two key phenomena of metal casting : the fluid flow during mold filling, and solidification process. The VOF method is used to analyze the free surface flow during filling and the equivalent specific heat method is employed to model the latent heat release during solidification. The time-implicit filling algorithm is applied to save the computational time for analyzing the mold filling process. The three-dimensional benchmark problem used in the MCWASP VII has been solved using both the implicit and explicit algorithm, and the present results are compared with the benchmark experimental results and the other numerical results.

Keywords

References

  1. Im, I.-T. and Kim, W.-S., 1999, 'Analysis of a Mold Filling using an Implicit SOLA-VOF,' Numerical Heat Transfer, Vol. A35, No. 3, pp. 331-342
  2. Hirt, C. W., Nichols, B. D., 1981, 'Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries,' J. of Computational Physics, Vol. 39, pp. 201-225 https://doi.org/10.1016/0021-9991(81)90145-5
  3. 신수호, 이우일, 1997, 'VOF 방법에 의한 이동하는 자유표면이 존재하는 유동의 유한요소 해석,' 대한기계학회논문집B, 제21권 제9호, pp. 1230-1243
  4. 정준호, 양동열, 1998, '마커표면방법과 적응 격자를 사용한 다이캐스팅 공정 중 충전과정의 유한요소해석,' 대한기계학회 추계학술대회논문집A, p 1086
  5. Dhatt, G., Gao, D. M. and Cheikh, A. B., 1990, 'A Finite Element Simulation of Metal Flow in Moulds,' Int. J. Numer. Meth. Eng., Vol. 30, pp. 821-831 https://doi.org/10.1002/nme.1620300416
  6. Sirrell, B., Holliday, M. and Campbell, J., 1996, 'Benchmark Testing the Flow and Solidification Modeling of Al Castings,' J. of Metals, Vol. 48, No. 3, pp. 20-23
  7. Brent, A. D., Voller, V. R. and Reid, K. J., 1988, 'Enthalpy - Porosity Technique for Modeling Convection - Diffusion Phase Change : Application to the Melting of a Pure Metal,' Numerical Heat Transfer, Vol. 13, pp. 297-318 https://doi.org/10.1080/10407788808913615
  8. 임익태, 1998, '주조공정의 주형충전 및 응고 과정 해석에 대한 효율적인 알고리듬 개발에 관한 연구,' 박사학위논문, 한양대학교
  9. Layton, M. A., Wang, C. M., Cheng, C., Yu, K. O., and Paul, A. J., 1995, 'Benchmark Test Casting : Modeling of Mold Filling and Solidification,' Modelling of Casting, Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 975-982
  10. Ruiz, D. J., Khandhia, Y., 1995, 'Filling and Solidification with Coupled Heat Transfer and Stress Analysis, Benchmark Casting, MCWASP VII,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS pp. 991-1006
  11. Barkhudarov, M. R. and Hirt, C. W., 1995, 'Casting Simulation : Mold Filling and Solidification - Benchmark Calculations using FLOW-3D,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS pp. 935-946
  12. Domanus, H. M., Schmitt, R. C., Chuzhoy, L. and Nastac, L., 1995, 'Computer Simulation using CAPS of an Aluminum Plate Casting,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 947-954
  13. Xu, Z. A. and Mampaey, F., 1995, 'Mould Filling and Solidification Simulation of the Benchmark Casting,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 963 -970
  14. Lewis, R. W., Ravindran, K. and Tran, V., 1995, 'Finite Element Simulation of the Benchmark Mould Filling Problem,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 955-962
  15. Ohnaka, I. and Zhu, J. D., 1995, 'Computer Simulation of Fluid Flow and Heat Transfer of the Benchmark Mould Test by DFDM / 3DFLOW,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 971 -974
  16. Sant, F. and Backer, G., 'Application of WRAFTS Fluid Flow Modeling Software to the Benchmark Test Casting,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 983 -990
  17. Rigaut, C., Meyer, H., Charbonnier, A. and Bourg, A., 'Round Robin Benchmark Exercise for Mould Filling and Solidification,' Modelling of Casting. Welding and Advanced Solidification Process VII, M. Cross and J. Campbell, eds., TMS, pp. 1007 - 1014