View Full-text

pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (31권3호 124-129)

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

주조유동 시뮬레이션에서 자유경계면 추적 기법 비교 연구

Young-Sim Choi, Jun-Ho Hong, Ho-Young Hwang

Korea Institute of Industrial Technology,

Abstract

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.

Keywords

Accuracy, Volume of Fluid method, Interface reconstruction, Donor-Acceptor method, PLIC, Molten Metal flow.