Adaptive mesh refinement techniques for diffusion-synthetic-accelerated discrete-ordinates neutral particle transport

Abstract

An Adaptive Mesh Refinement (AMR) technique is presented for the one-group and the multigroup SN transport equations discretized using a Discontinuous Galerkin (DG) method. A diffusion synthetic accelerator, also based on a DG discretization and directly obtained from the discretized transport equations, is given. Numerical results are provided for 2D unstructured triangular meshes