Adaptive Mesh Refinement (AMR) is a computational technique used in numerical simulations to improve accuracy and efficiency. It involves dynamically adjusting the resolution of a mesh, which is a grid used to represent a physical space. Areas with complex features or rapid changes in behavior receive a finer mesh, while simpler regions use a coarser mesh. This allows for more detailed analysis where needed without unnecessarily increasing computational costs. AMR is commonly applied in fields such as computational fluid dynamics, astrophysics, and climate modeling. By focusing computational resources on critical areas, AMR enhances the performance of simulations, enabling researchers to obtain more precise results in less time.