# 4.4.14. Submodel

In the course of system analysis simulations, situations may arise in which the addition a certain feature may hinder the creation of a meshed discretization. Although the feature is needed, an alternative approach is to approximate its effect by including the feature as a submodel of the more comprehensive background model. Here the feature in question is meshed independent of the background discretization and is included in the simulation by constraining local submodel node DOF to the background model DOF nodes. Hence node DOF on the embedded element blocks are constrained to node DOF on the enclosing element blocks.

    # Scope: Sierra > Procedure > Aria Region
    Begin Submodel aria-embed
      embedded blocks = block_101
      enclosing blocks = block_1
      ...
    End