Improved Front Tracking Method for Multi-Material Interfaces

The classic front tracking (FT) method, using the segments between the tracer points to represent the interface and the interface motion is simulated by the movement of tracer points, is valued for its typical high precision, but it is unable to deal with interfaces which have complex topological changes. In this paper, we have made an improvement on the basis of the classic FT algorithm and proposed a new data structure to solve problems involving the topological property. We simulated the movement of the interfaces by using the line segments between the tracer points and wrote a related program. In addition, two typical examples were applied to verify the reliability of the improved FT algorithm and the results are convincingly satisfactory.