SimSys
Software
1.
Restrictions,
License and Installation
o SimSys Install and Setup Instructions (pdf)
o SimSys Developer_Install and Setup
Instructions (pdf)
2.
User
Manuals
o AFLR3
Unstructured Grid Generator
AFLR3 is an unstructured tetrahedral element
mesh generation code. It uses the Advancing-Front/Local-Reconnection (AFLR)
procedure to generate a tetrahedral volume mesh from an existing surface
triangulation. In boundary-layer (BL) generation mode it also uses the
Advancing-Normal Boundary-Layer (ANBL) procedure to generate a tetrahedral,
pentahedral, and/or hexahedral BL mesh adjacent to BL generating surfaces.
Primary input is a surface triangulation. The input mesh file contains the
coordinates and connectivity for a fully connected surface triangulation. It is available as a stand-alone executable or a
suite of libraries for AFLR3 integration within other systems.
o
AFLR4 Unstructured Grid Generator
AFLR4 is a fully automatic unstructured 3D
surface mesh generation code. It uses the Advancing-Front/Local-Reconnection
(AFLR) procedure to generate a 3D surface mesh on multiple surfaces, each with
either a CAD geometry component definition, a discrete geometry component
definition, or a composite definition. Distribution of the surface point
spacing (length scale) is determined from an automated surface curvature driven
process with proximity checking and localized spacing reduction. AFLR4
includes a full integration of functions for EGADS with Open
CASCADE CAD. It is available as a stand-alone executable or a suite of
libraries for AFLR4 integration within other systems.
o
AFLR43 Unstructured Grid Generator
AFLR43 is an unstructured 3D surface and
volume mesh generation code. It combines AFLR4
and AFLR3 to create an integrated
geometry definition to volume mesh capability. It is available as a stand-alone
executable or a suite of libraries for integration
within other systems.
o
AFLR2 Unstructured Grid Generator
AFLR2 is a stand-alone unstructured 2D planar
tria-face/quad-face mesh generation code. It is based directly on a direct C
code conversion of the original Fortran code. AFLR2 uses the Advancing-Front/Local-Reconnection
(AFLR) procedure coupled with an Advancing-Normal BL procedure to generate a 2D
planar tria-face/quad-face mesh from an existing boundary edge grid. Primary
input to the code is a boundary edge grid. The input boundary edge grid is
defined by the coordinates and edge connectivity for a set of closed curves
composed of discrete edges.
o
AFLR2C Unstructured Grid Generator
AFLR2C is an unstructured 2D planar
tria-face/quad-face mesh generation code. It uses the
Advancing-Front/Local-Reconnection (AFLR) procedure to generate a 2D planar
tria-face/quad-face mesh from an existing boundary edge grid. Primary input to
the code is a boundary edge grid. The input boundary edge grid is defined by
the coordinates and edge connectivity for a set of closed curves composed of
discrete edges. It is available as a
stand-alone executable or a
suite of libraries for AFLR2C integration within other systems.
o
BLOOM3 Unstructured BL Layer Mesh Generator
BLOOM3 is an unstructured boundary-layer (BL)
generation code. For boundary-layer (BL) generation it uses an Advancing-Normal
Boundary-Layer procedure to generate a tetrahedral, pentahedral, and/or
hexahedral BL mesh adjacent to BL generating surfaces. For a complete volume
mesh, it uses either an open or closed method. For a closed method the primary
input is an unstructured tetrahedral element volume mesh and for inserting the
BL region mesh, BLOOM3 can be coupled with an external procedure for
displacing the volume mesh. In open mode the primary input is a surface
triangulation. BLOOM3 has an internal BL interference checking process
and is coupled with both AFLR3 and TetGen for complete volume
mesh generation. It is available as
a stand-alone executable or
a suite of libraries for BLOOM3 integration within
other systems.
UG_IO
is a suite of libraries
for 2D and 3D unstructured mesh, CAD, solution, and function file I/O. UGC is
a stand-alone unstructured 2D and 3D mesh, solution, and function file
conversion based on the UG_IO library suite. Executables for AFLR2C,
AFLR3, AFLR4, and BLOOM3 mesh generation also use the UG_IO
library suite for file I/O.
UVMAP is a library that can be used to
generate a U,V coordinate map for an unstructured
tria-face surface mesh with bounding curves in X,Y,Z physical space. It uses a
coupled bi-harmonic method with pseudo-orthogonal boundary-conditions to
generate the U,V map. AFLR4 unstructured
surface mesh generation uses the UVMAP library. A stand-alone testing
executable for UVMAP is available.
Grid_Tools is a collection of tools for
unstructured 3D surface and volume grids. The following links describe usage of
each tool. Note that Grid_Tools is only partially supported, and updates
are generally limited to OS updates, compiler changes, and major code bug fixes.
SolidMesh
is a stand-alone
unstructured 3D CAD processing and unstructured mesh generation system. It uses
an older version of the AFLR4 surface mesh generator. The GUI and
visualization systems within SolidMesh are based on older system
libraries that run only on older MacOSX and Linux based systems. It is no
longer supported and may be replaced in the near future
by another system. It is available only as a convenience for the few users that
can still utilize it.
3.
Release
Notes
o All SimSys
Program and Library Release Notes
4.
Links
o CAVS CFD