Is it possible to generate automatically surface bodies on all faces of an enclosure?

Erik Kostson

Often say for an ICFD analysis in LS-Dyna one needs to generate a skin mesh on the exterior boundaries of the fluid domain, and potentially a solid mesh for any structures that might be included in this type of analysis.

One way is to generate the surface bodies on all fluid domain boundaries/faces, and mesh those with shells e.g., inside an LS-Dyna system in Workbench.

For this reason it would be of help to generate automatically surface bodies on all faces of a fluid enclosure.

Erik Kostson

One way of doing this is shown below (one needs to have the fluid enclosure graphically selected for the script to work):

#select fluid enclosure graphically

body = Selection.GetActive().Items[0]
faces = body.Faces
for face in faces:
    result = Copy.Execute(FaceSelection.Create(face))


# Suppress/Unsuppress Physics
simulation = Solution.Simulation.GetByLabel("Simulation 1")
selection = BodySelection.Create(body)
simulation.SuppressBodies(selection,True)
# EndBlock

# Share Topology
options = ShareTopologyOptions()
options.Tolerance = MM(0.1)
result = ShareTopology.FindAndFix(options)
# EndBlock

Another way is to use Pull and surface coating in Mechanical.