Index

Master moving surface

Ver: 0   DESCRIPTION To be used to remesh a Blow Molding application making use of a surface (2D) or volume (3D) mesh.  In 3D,  using the membrane element is preferable.
For 2-D flows, two remeshing techniques make use of a 'master moving surface' :
  (1) The 'THIN SHELL METHOD' that has been developed for handling the large mesh deformations and nodal displacements which are encountered in blow moulding and thermo-forming applications. A tangential remeshing is applied to one of the free surfaces of the shell, in order to keep an acceptable element distribution into the mesh. The internal nodes are relocated along spines which are defined as being geometrically normal to the master free surface.

(2) The 'THIN SHELL METHOD + LAGRANGIAN MASTER' technique : this method combines the 'Thin Shell' method with a Lagrangian motion of the master. It means that, along the master surface, nodes of the finite element mesh correspond to material points. Interior nodes are relocated using the Optimesh technique, but at the end of each time step.


The current menu allows to choose the 'master moving surface' that will control the remeshing of the 'remeshing domain(s)'.

Rem : When the computation domain contains several fluid layers, there is only one 'master moving surface' for all the 'Thin Shell' remeshing domains.

  OPTIONS
 
i  Intersection with subdomain j
Sets the master moving surface to the line that is the intersection of the remeshing domain with subdomain j
k Intersection with boundary n
Sets the master moving surface to the line that is the intersection of the remeshing domain with boundary j
SEE ALSO