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Level Set과 VOF 방법을 결합한 3차원 경계면 추적법
서영호(Youngho Suh),성명호(Myungho Sung),손기헌(Gihun Son) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.9
A coupled level set and volume-of-fluid (CLSVOF) method is presented for computing three-dimensional incompressible two-phase flows. An efficient interface reconstruction algorithm is implemented for the CLSVOF method. Approximating an interface as piecewise linear in each cell, an explicit relation between the interface configuration and the fluid volume fraction is derived through geometrical description of the fractional volume truncated by the interface. The CLSVOF method is verified to calculate an interfacial curvature accurately as well as to achieve volume conservation during the whole computation period. We apply the method to numerical simulations of bubble sliding on a vertical wall and drop-wall collision.