Patent ID: 7389188

Claim:
A storage medium storing computer readable codes to provide a fluid-structure coupled numerical simulation method using a finite volume method that employs an orthogonal mesh and a computer and memory that set a solid area based on a solid rate inside a computational mesh and at a tangent position to each mesh, comprising the fluid-structure coupled numerical simulation method steps of: setting initial and boundary conditions of a shape, shift computed area, tension and feeding velocity of a moving film structure; setting a velocity boundary in a tangent direction of said film structure by computing a position and shape of the film structure; computing a curvature of said film structure; computing a pressure balance based on a balance between a pressure obtained from a fluid computation and a repulsive force obtained from the tension of the film structure and curvature thereof computed in said curvature computing step to implement processing of a mutually-coupled phenomenon between said film structure having no rigidity for bend moving in a predetermined direction and a fluid flowing on a film surface of said film structure; and simulating a shift amount of the film surface for each time said fluid-structure coupled numerical simulation method steps is executed.