Preserving isotropic element size functions in adaptivity, quadrilateral and hexahedral mesh generation ?
We define a quantitative criterion to assess if an element meets a size function. We deduce a method to modify the initial size function using a non-linear equation. The new size function ensures that the elements preserve the prescribed size. Our method can reduce the number of iterations to converge an adaptive process. We show that quad and hex meshers better reproduce the initial size function.
hexahedral mesh adaptive process mesh size function background mesh quadrilateral mesh gradient-limiting