한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제16권1호
  • /
  • Pages.54-60
  • /
  • 2018
  • /
  • 1598-8430(pISSN)
  • /
  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
권호 표지
DOI QR코드

DOI QR Code

SPH 기법을 이용한 주조공정 용탕 주입 유동 해석

Molten Metal Flow Analysis of Casting Process Using SPH Method

  • Park, Byung Lae (Department of Mechanical and Automotive Engineering, Graduate School, University of Ulsan) ;
  • Lee, Sang Wook (School of Mechanical Engineering, University of Ulsan)
  • 투고 : 2018.03.26
  • 심사 : 2018.04.23
  • 발행 : 2018.04.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

It is important to develop more efficient and productive casting processes for an automated high precision molten-metal casting system. Detailed analysis of molten-metal flow in the casting process by the numerical approach will help to optimize the control of a ladle. In this study, the smoothed particle hydrodynamics method was applied to analyze casting flow characteristics with different tilting angular speed and initial molten-metal level. The smoothed particle hydrodynamics technique has advantages to easily handle non-linear free surface behavior with the absence of a computational mesh. We found that tilting angular speed has relatively greater effect on the casting flowrate and that the effect of the initial molten-metal level is only minor. Further extensive study will be necessary to find an optimal condition for high efficient casting system.

키워드

참고문헌

  1. Y. M. Hur, 2007, "A study of the pre-estimate of castability of ADC10 and scrap by FEM simulation and experiment", M.S Thesis, Hanyang University.
  2. J. S. Lee, Y. C. Lee, B. K. Bae and H. S. Jang, 2011, "Mold Filling Analysis for Development of Vertical Die Casting Machine," Korean Society of Precision Engineering 2018 Fall Conference, pp. 1161-1162.
  3. B.-H. Lee, J.-C. Park, M.-C. Ryu, Y.-S. Kim and Y.-H. Kim, 2007, "Numerical Simulation of Non-linear Free-surface Motions Using Moving Particle Semi-implicit(MPS) Method", Journal of Ocean Engineering and Technology, Vol. 21, No. 6, pp. 53-58.
  4. J. C. Park, B. H. Lee and S. J. Jung, 2007, "Numerical simulation of dam-broken problems using a particle method", Koean Soceity for Compuational Fluids Engineering, pp. 258-263
  5. G. H. Lee, T. W. Yoon and C. Y. Kang, 2014, "A Study on the Mechanical Properties and Formability of Mg AZ31B Sheet", Transactions of Materials Processing, Vol. 23, No. 8, pp. 495-500. https://doi.org/10.5228/KSTP.2014.23.8.495
  6. R. A. Dalrymple and B. D. Rogers, 2006, "Numerical modeling of water waves with the SPH method", Coastal engineering, Vol. 53, pp. 141-147. https://doi.org/10.1016/j.coastaleng.2005.10.004
  7. H. Wendland, 1995, "Piecewiese polynomial, positive definite and compactly supported radial functions of minimal degree", Advances in Computational Mathematics, Vol. 4, No. 1, pp. 389-396. https://doi.org/10.1007/BF02123482
  8. H. Gotoh, S. Shao, and T. Memita, 2004, "SPH-LES model for numerical investigation of wave interaction with partially immersed breakwater", Coastal Engineering Journal, Vol. 46, pp. 39-63. https://doi.org/10.1142/S0578563404000872