What type of elements are typically used in regions with low errors during an h-adaptive process?

In an h-adaptive process, the goal is to refine the mesh to improve the accuracy of the simulation results. Typically, smaller elements are used in regions where the error is low. By utilizing smaller elements in areas of low error, the simulation can maintain high accuracy without unnecessarily increasing the computational load in those regions. This approach focuses computational resources on areas where they are needed, allowing for a more efficient simulation overall.

In contrast, larger elements may be employed in regions where the behavior is relatively uniform and does not require high precision. They would not provide the same level of detail as smaller elements in terms of capturing gradients or complex phenomena. Standard elements could refer to a basic mesh setup that doesn't necessarily adapt based on error assessment, while irregular elements may be used for specific situations, but they are not specifically aimed at optimizing performance in low-error areas. Therefore, the use of smaller elements in regions with low errors aligns best with the principles of mesh refinement and efficient resource allocation in simulations.