GAMBIT I.I
Support :
All major UNIX workstations -Microsoft Windows
Résumé :
GAMBIT is a state-of-the-art preprocessor for engineering analysis. With advanced geometry and meshing tools in a powerful, flexible, tightly-integrated, and easy-to-use interface, GAMBIT can dramatically reduce preprocessing times for many applications. Complex models can be built directly within GAMBIT's solid geometry modeler, or imported from any major CAD/CAE system. A comprehensive set of highly-automated meshing tools ensures that the best mesh can be generated, whether structured, multiblock, unstructured, or hybrid.
Geometry Modeling
GAMBIT includes comprehensive, easy-to-use tools for rapid creation or import-and-cleanup of all types of models.
Direct solid creation for rapid model building
Direct creation of bricks, cylinders, prisms, frustums, spheres, tori, and pyramids with numerous options
Surface and wirefranme creation for detailed models
-Vertices at coordinates, snapped to grids, on edges, on faces, on volumes
-Edges between vertices (straight lines and projected to curved surfaces), arcs, circles, ellipses, conics, fillets, NURBS (through or fit to sets of points)
Faces from edge lops (wireframes), planes through 3 points, lofted from series of edges, through series of points, through series of U and V and curves , by revolutions of edges about edges or vectors, by sweep of edges or vectors
-Volume from edges (wireframes), from closed surface shells (stitching), by revolutions of faces about edges or vectors, by sweeps of faces along edges or vectors
Comprehensive geometry modification tools
Booleans (intersect, unit, subtract, split, blend, fillet)
Move or copy any entity or group by revolution about an edge or vector, translation( local or global coordinate system; Cartesian, cylindrical or spherical), mirroring (reflection) about a plane, or scaling (local global coordinate system)
Automatically or explicitly connect duplicate or mismatched vertices, edges and faces within a specified tolerance (virtual or real), including T connection of edges
Splitting of edges, faces, and volumes at physical or parametric locations, or through existing vertices/edges/faces to easily clean up imported models.
Merging of edges, faces, and volumes into single entities to clean up imported models ad remove insignificant feature
Local Coordinate system add convenience
Unlimited number of local coordinate systems can be created
Cartesian, cylindrical spherical
Create explicitly or relative to existing system
Snap-to-grid relative to planes of any coordinate system
Groupe make comlex models easy to manage
Unlimited number can be created
Can contain any geometrical/topological entities
Individual entities can belong to multiple groups
Mesh Generation
GAMBIT offers state-of-the-art mesh generation technology in a powerful, yet easy-to-use interface. Extensive automation dramatically reduces meshing time in many applications.
Edge meshing (bunching)
Defined interactively with real-time, graphical feedback
Multiple grading schemes include, geometric ratio, first/last ratio, first or last length
Double-sided grading with automatic mid-point location
Multiple edges automatically linked when meshed together
Specify number of intervals or interval size
Unmeshed edges automatically meshed during face or volume meshing
Meshes can be smoothed independently, or with face and volume meshes
Face meshing
Triangles and quadrilaterals
Linear and quadratic
Structured, unstructured, and hybrid
Numerous meshing schemes available, map , submap , pave, triangle primitive, wedge primitive, hybrids
Suitable mesh scheme automatically recommended for each face
Automatic domain decomposition for multiblock, structured meshing (submap)
Boundary layers automatically generated during meshing (see below)
Numbers of intervals automatically propagated to unmeshed edges
Unmeshed faces automatically meshed during volume meshing
Meshes can be smoothed independently, or with volume meshes
Full support of periodic boundaries through linking
Embedded vertices and edges supported
Volume meshing
Hexahedra (bricks), tetrahedra, wedges, and pyramids
Linear and quadratic
Structured, unstructured, and hybrid
Numerous meshing schemes available ,map , submap , Cooper, tetrahedron primitive, tetrahedral meshing , hybrids with prism layers and automatic pyramid transitions between hex and tet elements
Suitable mesh scheme automatically recommended for each volume
Automatic domain decomposition for multiblock, structured meshing (submap) and unstructured meshing (Cooper)
Boundary layers automatically generated during meshing (see below)
Numbers of intervals automatically propagated to unmeshed edges
Several smoothing schemes available
Boundary Layers for rapid definition of high-quality elements near walls
On edges and/or faces
Define interactively with real-time, graphical feedback
Specify any three of: the first layer height, geometric growth ratio, number of rows, total depth
Transition layers (4:2, 3:1, 5:1) available
Various corner treatments available
Mesh editing for fine-tuning
Interactively move individual nodes
Automatic reprojection onto surface geometry
Automatic updating/smoothing of surrounding and linked meshes
Split existing mesh into separate regions
Extensive element quality metrics
Interactively sweep planes through mesh
Display histograms of element quality and highlight elements in selected bars
Metrics include skewness, aspect ratio, volume, and numerous others
Boundary conditions conveniently applied to real model
Boundary types applied directly to geometry
Available boundary types automatically matched to capabilities of selected solver
User-specified or default boundary names
CAD/CAE Interfaces
GAMBIT provides numerous options for all major CAD/CAE systems and standard interchange formats.
Geometry import
ACIS (.sat and .sab, any version up through 5.3)
IGES (with automatic cleanup of mismatched and duplicate entities)
STL (stereolithography)
Pro/ENGINEER VRML
I-DEAS Faceted Part File (FTL)
Optegra Visualizer
STEP, VDAFS, Catia, Pro/ENGINEER, Unigraphics/Parasolid, I-DEAS, DXF, CADDS-5, and others available from third parties
Mesh import
ANSYS
NASTRAN
PATRAN
I-DEAS
PLOT3D
FLUENT
FIDAP
Imported meshes can be used to define geometry which can be remeshed as needed
Interactive definition and manipulation of geometric edges/faces based on imported mesh
Geometry export
ACIS (.sat and .sab)
IGES, STEP, VDAFS, Catia, Unigraphics/Parasolid, and others available from third parties
Mesh export
All Fluent solver formats
Neutral file (published format)
User Interface
GAMBITs user interface is incredibly powerful and flexible, yet highly efficient and very easy to learn and use.
Multilevel undo
All geometry and meshing operations can be undone
Number of levels can be set by user from zero through infinity
Easy-to-learn GUI
Full graphical user interface with menubars, toolpads, and icons with instant help descriptions
Layout can be fully customized and saved for future sessions
Profress bar during long operations, including ability to interrupt before completion
Graphical, HTML-based on line help
Comprehensive journaling for automation and parametric studies
Full journaling language with user-defined parameters, DO Ioops, IF-THEN-ELSE blocks
Automatic or line-by line playback full text editor
Complete session transcripting
Color-coded text
Advanced graphics
Full 3d functionality on all platforms
Optimized performance on advanced graphics hardware, including availability of OpenGL support on Widows NT
Multiple rendering options include hidden line, shading with user-configurable light sources, and silhouettes
Up to 4 simultaneous windows with individual views and renderings
Extensive customization
Program behaviour can be extensively customized via global defaults table with interactive GUI
Changes can be saved for all future session, or for selective retrieval
Platforms
All major UNIX workstations: Sun, SGI, HP, IBM, DEC
Microsoft Windows NT on Intel-Compatible workstations
Full functionality on all platforms
Geometry Modeling
GAMBIT includes comprehensive, easy-to-use tools for rapid creation or import-and-cleanup of all types of models.
Direct solid creation for rapid model building
Direct creation of bricks, cylinders, prisms, frustums, spheres, tori, and pyramids with numerous options
Surface and wirefranme creation for detailed models
-Vertices at coordinates, snapped to grids, on edges, on faces, on volumes
-Edges between vertices (straight lines and projected to curved surfaces), arcs, circles, ellipses, conics, fillets, NURBS (through or fit to sets of points)
Faces from edge lops (wireframes), planes through 3 points, lofted from series of edges, through series of points, through series of U and V and curves , by revolutions of edges about edges or vectors, by sweep of edges or vectors
-Volume from edges (wireframes), from closed surface shells (stitching), by revolutions of faces about edges or vectors, by sweeps of faces along edges or vectors
Comprehensive geometry modification tools
Booleans (intersect, unit, subtract, split, blend, fillet)
Move or copy any entity or group by revolution about an edge or vector, translation( local or global coordinate system; Cartesian, cylindrical or spherical), mirroring (reflection) about a plane, or scaling (local global coordinate system)
Automatically or explicitly connect duplicate or mismatched vertices, edges and faces within a specified tolerance (virtual or real), including T connection of edges
Splitting of edges, faces, and volumes at physical or parametric locations, or through existing vertices/edges/faces to easily clean up imported models.
Merging of edges, faces, and volumes into single entities to clean up imported models ad remove insignificant feature
Local Coordinate system add convenience
Unlimited number of local coordinate systems can be created
Cartesian, cylindrical spherical
Create explicitly or relative to existing system
Snap-to-grid relative to planes of any coordinate system
Groupe make comlex models easy to manage
Unlimited number can be created
Can contain any geometrical/topological entities
Individual entities can belong to multiple groups
Mesh Generation
GAMBIT offers state-of-the-art mesh generation technology in a powerful, yet easy-to-use interface. Extensive automation dramatically reduces meshing time in many applications.
Edge meshing (bunching)
Defined interactively with real-time, graphical feedback
Multiple grading schemes include, geometric ratio, first/last ratio, first or last length
Double-sided grading with automatic mid-point location
Multiple edges automatically linked when meshed together
Specify number of intervals or interval size
Unmeshed edges automatically meshed during face or volume meshing
Meshes can be smoothed independently, or with face and volume meshes
Face meshing
Triangles and quadrilaterals
Linear and quadratic
Structured, unstructured, and hybrid
Numerous meshing schemes available, map , submap , pave, triangle primitive, wedge primitive, hybrids
Suitable mesh scheme automatically recommended for each face
Automatic domain decomposition for multiblock, structured meshing (submap)
Boundary layers automatically generated during meshing (see below)
Numbers of intervals automatically propagated to unmeshed edges
Unmeshed faces automatically meshed during volume meshing
Meshes can be smoothed independently, or with volume meshes
Full support of periodic boundaries through linking
Embedded vertices and edges supported
Volume meshing
Hexahedra (bricks), tetrahedra, wedges, and pyramids
Linear and quadratic
Structured, unstructured, and hybrid
Numerous meshing schemes available ,map , submap , Cooper, tetrahedron primitive, tetrahedral meshing , hybrids with prism layers and automatic pyramid transitions between hex and tet elements
Suitable mesh scheme automatically recommended for each volume
Automatic domain decomposition for multiblock, structured meshing (submap) and unstructured meshing (Cooper)
Boundary layers automatically generated during meshing (see below)
Numbers of intervals automatically propagated to unmeshed edges
Several smoothing schemes available
Boundary Layers for rapid definition of high-quality elements near walls
On edges and/or faces
Define interactively with real-time, graphical feedback
Specify any three of: the first layer height, geometric growth ratio, number of rows, total depth
Transition layers (4:2, 3:1, 5:1) available
Various corner treatments available
Mesh editing for fine-tuning
Interactively move individual nodes
Automatic reprojection onto surface geometry
Automatic updating/smoothing of surrounding and linked meshes
Split existing mesh into separate regions
Extensive element quality metrics
Interactively sweep planes through mesh
Display histograms of element quality and highlight elements in selected bars
Metrics include skewness, aspect ratio, volume, and numerous others
Boundary conditions conveniently applied to real model
Boundary types applied directly to geometry
Available boundary types automatically matched to capabilities of selected solver
User-specified or default boundary names
CAD/CAE Interfaces
GAMBIT provides numerous options for all major CAD/CAE systems and standard interchange formats.
Geometry import
ACIS (.sat and .sab, any version up through 5.3)
IGES (with automatic cleanup of mismatched and duplicate entities)
STL (stereolithography)
Pro/ENGINEER VRML
I-DEAS Faceted Part File (FTL)
Optegra Visualizer
STEP, VDAFS, Catia, Pro/ENGINEER, Unigraphics/Parasolid, I-DEAS, DXF, CADDS-5, and others available from third parties
Mesh import
ANSYS
NASTRAN
PATRAN
I-DEAS
PLOT3D
FLUENT
FIDAP
Imported meshes can be used to define geometry which can be remeshed as needed
Interactive definition and manipulation of geometric edges/faces based on imported mesh
Geometry export
ACIS (.sat and .sab)
IGES, STEP, VDAFS, Catia, Unigraphics/Parasolid, and others available from third parties
Mesh export
All Fluent solver formats
Neutral file (published format)
User Interface
GAMBITs user interface is incredibly powerful and flexible, yet highly efficient and very easy to learn and use.
Multilevel undo
All geometry and meshing operations can be undone
Number of levels can be set by user from zero through infinity
Easy-to-learn GUI
Full graphical user interface with menubars, toolpads, and icons with instant help descriptions
Layout can be fully customized and saved for future sessions
Profress bar during long operations, including ability to interrupt before completion
Graphical, HTML-based on line help
Comprehensive journaling for automation and parametric studies
Full journaling language with user-defined parameters, DO Ioops, IF-THEN-ELSE blocks
Automatic or line-by line playback full text editor
Complete session transcripting
Color-coded text
Advanced graphics
Full 3d functionality on all platforms
Optimized performance on advanced graphics hardware, including availability of OpenGL support on Widows NT
Multiple rendering options include hidden line, shading with user-configurable light sources, and silhouettes
Up to 4 simultaneous windows with individual views and renderings
Extensive customization
Program behaviour can be extensively customized via global defaults table with interactive GUI
Changes can be saved for all future session, or for selective retrieval
Platforms
All major UNIX workstations: Sun, SGI, HP, IBM, DEC
Microsoft Windows NT on Intel-Compatible workstations
Full functionality on all platforms