Chemical attack simulations using a level set formulation

We present a numerical method to simulate the dissolution process of a solid plunged into a corrosive fluid. A level set formulation describing the free boundary evolution of the dissolution process is presented. Our goal is to compute critical situations like the parting or the merge of moving domains. A technique of virtual acid is introduced to obtain acid concentration in the whole domain and allows a level set formulation on the whole domain. Numerical simulations using the finite element method are given for two-dimensional geometries. Two typical situations––splitting off and merge––are presented.