An Improved Level-Set Re-initialization Method and Application Research

With regard to the critical problem in the re-initialization process of Level Set interface capture method, a formula of smoothing parameter in Level Set re-initialization equation and an implicit re-initialization method are proposed. The effectiveness is verified by numerical experiments, and the improved method is used in computing the propagation of small curvature bending detonation wave problem. Numerical results show that the improved Level Set method is significantly better than the traditional method in computation accuracy.