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| The scSTREAM 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. scSTREAM's Pre-processor provides an easy-to-understand and use GUI. |
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Set-upWizards and Dialog Boxes |
scSTREAM is general purpose thermal fluid analyis
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, scSTREAM incorporates a
navigation system 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 eliminate the possibility of omitting
critical data inputs and makes the software user
friendly for both first time users and those who use the
software infrequently.
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CAD Import |
scSTREAM can import 3D CAD data (e.g. Parsolid (X_T),
STEP(.stp), STL, DXF) and IDF). the scSTREAM
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).
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Geometry Creation and Part Generation Library |
Geometry creation in scSTREAM includes standard modeling
tools such as cuboids and cylinders in addition to
importing CAD data. A sketch function can be used
to create geometries on a drawing image. Moreover,
parts such as cooling fins for electronic equipment, and
fans, piping, or anemostats for air conditioning systems
can be accommodated in scSTREAM. Parts used
repeatedly can be registered in a Parts Library.
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Multi-block, Connected Block, and Automated Mesh
Generation |
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scSTREAM 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.
The structured grid generator in scSTREAM is simple
and easy to use. scSTREAM can provide automatic
mesh generation, which is useful for complex geometries.
The multi-block function offers the capability to
concentrate grid resolution in a particular area.
For example, multi-block is used to produce a fine grid
in the space around a building where gradients are the
highest and a coarser grid for the surroundings where
geometrical details are less important. Locally
controlling mesh density reduces the amount of memory
necessary for calculation and reduces computation time
while retaining high accuracy. Connected block
permits connecting groups of multi-blocks together.
This is useful when meshing objects that are very close
to each other.
 
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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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| Preprocessor Function List |
| Modeling |
CAD data interface |
Parasolid(X_T), STEP, STL, DXF(3Dface), XGL, NASTRAN, IDF,
SHAPE, Gerber data (RS-274D, RS-274X)*1 |
| 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
