What Is Sub parametric Elements?

Answer 1

Subparametric elements are finite element representations that use a lower-dimensional parameterization than the actual geometry. Instead of matching the complexity of the geometry, these elements simplify the representation by using fewer degrees of freedom, often resulting in easier computations and reduced mesh sizes. They are commonly used in numerical methods for problems where the exact geometry is complex or when computational efficiency is a priority. However, this approach can lead to reduced accuracy in capturing detailed geometric features.