Input

The input is given as a triangle surface (STL or NASTRAN, one file per part) and a RESOLUTION parameter. Non watertight surfaces will be repaired automatically. Details of this surface, wich are smaller than the value of RESOLUTION, may not be meshed correctly.




File INPUT.mmt


//             comment
NASTRAN     ...path.../Filstal-bridge.nas
//STL         ...path.../Filstal-bridge.stl

FLUID_MESH     output fluid + solid mesh. Default output solid mesh.

//INFO   60   1     geometric adaptive sequence of hierarchic BCC meshes
//INFO   61   1     Nastran pid = tetra generation
//INFO   94   node-id     Check-Tool about this MT_fail
//INFO   95   node-id     Check-Tool about this node
//INFO   96   1     1 = refinement rule bisection
//INFO   99   1     1 = initial Tetra = regular, Platon

//PARAMETER   90   1.e-10     message for new tetras worse than ..

RESOLUTION   4



Run LFE MMT

You can run LFE-MMT simply by

   LFE-MMT-executable    INPUT.mmt




BOOLEAN input

... text ...



Output

The output is a conformal tetrahedral mesh, formatted like a NASTRAN file. Each part and the fluid (= complementary space ) is given as a separate set of elements.



Polyhedral output

Conformal mesh of octahedron, hexahedron (= brick), prism, pyramid, tetra - elements.
Each element is bounded by triangles and plane quads.



Output at a second glance

An adaptive hierarchy of tetra meshes approximates the input CAD data.




contact michael.lautsch[at]lautsch-fe.com