한국주조공학회지 (Journal of Korea Foundry Society)

  • 제31권3호
  • /
  • Pages.124-129
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  • 2011
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  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
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주조유동 시뮬레이션에서 자유경계면 추적 기법 비교 연구

A Comparative Study of Interface Reconstruction Algorithms in The Molten Metal Flow

  • 최영심 (한국생산기술연구원 사이버설계센터) ;
  • 홍준호 (한국생산기술연구원 사이버설계센터) ;
  • 황호영 (한국생산기술연구원 사이버설계센터)
  • Choi, Young-Sim (e-Design Center, Korea Institute of Industrial Technology) ;
  • Hong, Jun-Ho (e-Design Center, Korea Institute of Industrial Technology) ;
  • Hwang, Ho-Young (e-Design Center, Korea Institute of Industrial Technology)
  • 투고 : 2011.05.19
  • 심사 : 2011.06.10
  • 발행 : 2011.06.30
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초록

We applied two numerical schemes to improve accuracy of the solution in the flow simulation of molten metal. One method is Piecewise Linear Interface Calculation (PLIC) method and the other is Donor-Acceptor (D-A) method. In the present work, we have tested simple problems to verify the module of the interface reconstruction algorithms. After validations, accuracy and efficiency of these two methods have compared by simulating various real products. On the numerical simulation of free surface flow, it is possible for PLIC method to track very accurately the interface between phases. PLIC method, however, has the weak point where a lot of computational time hangs, though it shows the more accurate interface reconstruction. Donor-Acceptor method has enough effectiveness in the macro observation of mold filling sequence though it shows the inferior accuracy.

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참고문헌

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