Generalized Curvilinear Coordinate Interface Tracking in the Computational Domain


Department of Mechanical Engineering,Shiraz University


Abstract. Volume Of Fluid (VOF) is one of the most powerful methods to resolve free surface
In this study, a new algorithm is developed in a curvilinear coordinate system, which implements an
implicit pressure based method (SIMPLE) with a staggered grid and a Lagrangian propagation of the
interface, using the VOF method in the computational domain. Based on this algorithm, a computer code
is generated and two test cases of dam-breaking problems, both in curvilinear and Cartesian grid systems,
are examined and, then, two applications of this method, including
ow through a curved gate under a
dam and the impact problem of a circular cylinder, are presented. The results show good agreement with
experimental and other computational results.