5.3.1 Non-Cartesian and/or refined grids

Possible numerical grid improvement techniques:

• Eulerian $\rightarrow$ Lagrangian
• Equidistant $\rightarrow$ non-equidistant
• Structured $\rightarrow$ unstructured
• One $\rightarrow$ many hierarchical
• Fixed in time $\rightarrow$ adaptive
• Grid $\rightarrow$ no grid: SPH