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| The STREAM Pre-processor is used to configure the data for calculation. It is used to create shapes, generate meshes, and define boundary
conditions and material properties. STREAM's Pre-processor provides an easy-to-understand and use GUI. |
| Mesh Generation |
STREAM uses a structured mesh (Cartesian and cylindrical coordinates). It enables automatic mesh
generation using a standard length and geometric ratio saving time when working with similar shaped parts.
 
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| Deformation Function |
Depending on the complexity of the geometry, the mesh may not be generated uniformly or as wanted using
the automatic mesh generation functions. To prevent non-uniform mesh generation and false recognition of the original geometry, the geometry can be converted into staircase
patterned shapes prior to mesh generation. This function enables the user to define exact mesh locations and maintain proper surface areas and volumes after meshing.
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| Condition Setting |
STREAM is general-purpose thermal fluid analysis software that is capable of simulating a variety of
physical phenomena. Multi-purpose CFD software can be complicated and difficult to use. To help alleviate the complexity, STREAM incorporates a navigation system
consisting of well-organized set-up wizards and dialog boxes to guide the user through all the set-up functions, from basic features to advanced settings. This helps the user
eliminate the possibility of omitting critical data inputs and makes the software more user friendly for first time users.
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| CAD Import |
STREAM can import 3D CAD (e.g. Palasolid(X_T),STEP(.stp),STL,DXF) and IDF data, used in electronic
board design to define model geometry. The STREAM pre-processor contains useful functions such as simplification of complicated geometries, batch deletion by
size, and click-designated deletion (useful for complex CAD data with either too few or too many parts).
 
The wizard also enables placement of parts and assembly, scale conversion and creation of various computational domains depending on the type of simulation being run. |
| Preprocessor Function List |
| Modeling |
CAD data interface |
Parasolid(X_T), STEP, STL, DXF(3Dface), XGL, NASTRAN, IDF |
| Template of electronics parts |
Cuboid, Hexagon, Cylinder, Cone, Sphere, Polygon, Inclined Plate, Panel(Orthogonal, Quadrilateral, Inclined), Housing, Board, Radiator Fin, Pin Fin,
Card Guide, Slit Punching, Clipping, Fan(Rotating, Cross-Flow) |
| Model settings |
3D layout with mouse operation, grid-snap function
Detailed settings with dialogs, relative coordinate |
| Editing geometry |
Boolean operation(add, subtract, multiply, cut by plane, fill hole)
Simplification(hexagonalize, cylindricalize, line up parts)
Removing tiny geometry |
| Managing parts |
Registration of Parts Library |
| Mesh generation |
Automatic meshing |
Automatic meshing approximating the specified number of mesh |
| Automatic rough meshing |
Automatic rough meshing based on part shapes |
| Controlling mesh width |
Specifying minimum mesh width, specifying mesh width around parts |
| Subdividing between meshes |
Detailed subdivision settings by width ratio and number of mesh |
| Conditions |
Easy setting with wizard |
Initial Wizard
Condition Wizard(Flux, Radiation, Pressure loss, Contact heat transfer, etc.) |
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Innovative CFD-ware for Product Design
