Séance Séminaire

Séminaire ACSIOM

A priori anisotropic goal-oriented estimates for mesh adaptation in compressible CFD

We present a new algorithm for combining a fully anisotropic goal-oriented mesh adaptation with the transient fixed point method for unsteady problems. The minimization of the error on a functional provides both the density and the anisotropy (stretching) of the optimal mesh. This method is used for specifying the mesh for a time sub-interval from the state and the adjoint. The global transient fixed point iterates the re-evaluation of meshes and the states over the whole time interval until convergence. Applications to unsteady blast-wave Euler flows are presented.