The Lagrangian remeshing method is applicable for all transient 2D, 3D, and shell models, and is often a good option for flow simulations involving moving boundaries, however with no entries or exits.. In this method, the nodes simply follow the displacements of the material points

(16–14)

in all directions of the Cartesian space. For a 3D shell model (whether the simulation occurs on the boundary of a 3D mesh or on a shell mesh), one of the advantages is that the nodal displacements follow the material points, making the physical deformations more readily apparent.