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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 1
ANSA &ETA :powerful
pre- and post-processing for advanced CFD simulations
January 2015
BETA CAE Systems S.A.
Kato Scholari, Thessaloniki,
GR- 57500 Epanomi, Greece
Tel :+30-392-021420
Fax :+30-392-021417
Email : [email protected]
URL : http://www.beta-cae.gr
geometry
mesh
morph
results
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 2
ANSA pre-processor specifications
Supported platforms:
- Linux
- Windows XP / Vista / 7 / 8
- MacOS
By permission of
Wirth Research Ltd
64 bitcode for unlimited memory usage
Double precisionfor high accuracy
Parallel processing on multi corehardware for maximum speed
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 3
By permission of Wirth Research Ltd
Input/Output
Native CAD formats:
CATIA V4 & V5
Unigraphics NX
PTC Creo Parametric (ProE)JT
SolidWorks
Inventor
Parasolid
Neutral CAD formats:
IGES
STEP
VDA-FS
CFD formats:
Fluent
Star-CD and CCM+
OpenFOAMCFD++
CFX5
CGNS
SC/Tetra
UH-3D
TAU
Other mesh formats
PATRAN
STL
VRML
and more..
Direct Interfaces with other CAE codesRADTHERM
THESEUS-FE
NASTRAN
ABAQUS
ANSYS
LS-DYNA
and more..
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 4
Powerful generation and visualization of large CFD models
Industrial scale pre-processing
High Lift Prediction Workshop II model
180 million cells
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 5
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 6
Geometry handling
CAD feel, easy-to-use functions for creation and manipulation of geometrical entities (points,
curves, surfaces)
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 8
Cutting planes for model examination and cross section creation
DrivAer model courtesy of Technical University of Munich
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 9
Geometry handling: De-featuring and watertight model preparation
Raw CAD data De-featured and
watertight model
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 10
Geometry handling: identification and isolation tools for:
Intersections Contacts/Proximities
Inner passagesOuter skin Baffles
Emboss logos
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 11
Powerful tools for management and connection of CAD geometry and existing FE-mesh
Combining geometry and FE-model mesh
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 12
Boolean operations in geometry with option for fillet creation
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 13
Speed-up model preparation using automatic identification of similar geometry & replacement with
linked geometry
Geometry handling: Linked geometry
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 15
Multiple algorithms for tria, quad or mixed-type shell mesh
Surface meshing
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 16
Automatic Macro Area merging for high quality surface mesh
Surface meshing
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 17
Fully automatic Curvature Dependent surface meshing
with user controlled growth rate, min & max
element size and mesh feature angle
By permission of
Chalmers University
of Technology
Surface meshing for CFD
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 18
Size Boxes of arbitrary shape for local surface mesh control
Surface meshing: Size Boxes
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 19
Combined CFD and anisotropic meshing for aerospace applications
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 21
Surface meshing proximity detection
Proximity detection in shell mesh and auto-refinement
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 22
Reconstruction of existing FE-model mesh for element type modification, quality
improvement, refinement, or coarsening
Surface meshing - Reconstruction
Automaticfeature line detection
Remeshing specified
element type
Refining Coarsening
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 23
Reconstruction of bad quality STL mesh respecting local size and curvature
Surface meshing - Reconstruction
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 24
Variable length Wrapping, capturing local curvature and model feature lines
Surface Wrapping
Imported STL
or uncleangeometry
wrapping
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 25
Variable length Wrapping, capturing local curvature, model feature lines
with proximity refinement and contact prevention
Input STL dataTreatment (hole and gap closure)
Surface Wrapping
Surface Wrapping
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 26
Surface Wrapping: proximity refinement options
Different part proximity
Same part proximityOriginal STL
Without self-proximity With self-proximity
Ability to specify proximity refinement settings to avoid fused areas between different
or same parts
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Automatic detection and removal of gaps and features
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 28
Surface Wrapping: leak detection tools
Identification of multiple leak paths for multiple user specified source points
Leak 1
Leak 2
Leak 3
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 29
Watertight model creation for intersections, contacts and proximities
intersection
proximity
contact
Automatic detection
of intersections and
proximities
Watertight model Interior boundaries kept Interior boundaries removed
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 30
Efficient creation of models for e-coat simulations starting from FEA meshes
Triangulated shell mesh Volumized mesh according
to property thickness
Automatic fusing of
contacts and proximities
Final watertight mesh with
all necessary details
FEA analysis
shell mesh
Watertight exterior mesh
ready for volume meshing
for e-coat CFD model
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Template controlled mesh integrity checks (locate unmeshed areas, free edges, proximities
and penetration areas, duplicate elements etc.)
Comprehensive mesh information and quality statistics
Quality check according to
multiple criteria (skewness, angle
squish, length, aspect, warp, etc.)
and solvers (Fluent, Star, OpenFOAM etc.)
Clear identification of poor-quality elements
Surface meshing: Checks
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 32
Double parallel model management tools: Properties (corresponding to CFD model zones)
and Parts (assembly hierarchy extracted from CAD data)
CFD model management
Properties Parts
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Configurations Management functionality handling three variants in one file
DrivAer model courtesy of
Technical University of Munich
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Functionality to compare current model with updates in other ANSA files, identify
differences in geometry, or other attributes, and automatically update the current model
with the necessary differences only
CFD model management
Current model
Updated version of the model in
different file overlaid for
comparison
Current model with replaced areas
automatically identified from
updated model
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Fully automatic volume and sub volume detection applicable to the most complex problems
By permission of
FORD WERKE GmbH
Volume meshing
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By permission of Volkswagen AG
Fast and robust volume meshing for all types of elements
(tetra, pyramid, prism, hexa and polyhedron)
Volume meshing
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Volume meshing: Definition of multiple fluid and solid zones
Non-conformal mesh for moving mesh analysis Periodic BCs matching node meshes
Conformal mesh for MRF and porous zones and for conjugate heat transfer analyses
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Courtesy of Actiflow BV
Volume meshing: Solar car and urban environment CFD simulations
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Volume meshing: EV-55 outback CFD study
Courtesy of Evektor
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Complete volume mesh of a human heart
2 million trias, 23 million prisms and tetras
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Fully-conformal variable size Hexa-Interior mesh with prism and pyramid transitions
Hexa Interior algorithm
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Polyhedral type volume meshing algorithm
Variable size hexa mesh with polyhedral elements for transitions
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Size Boxes controlling max element size
Volume meshing: Size Boxes
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Trim hexa/polyhedral mesher
Fully automated, highly controllable, trim hexa and polyhedral mesh generation without the need
for watertight volume definitions, running on multi core machines
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Multiple options:
Auto exclude or
collapse areas
Controlled
Layer Squeezing to
avoid intersections
Layers from selectedareas with different
settings
Layers from
zero-thickness walls
Volume meshing: Boundary layers generation
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Boundary layers exclude mode
Automatic fix of intersection and proximities in any of three options
Squeeze option Collapse option Exclude option
Collapse free edges
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X number of inner layers in
absolute mode
Y number of additional outer
layers in aspect mode
Ability to create an X number of layers in absolute height mode and then switch to aspect mode
for the outer additional layers, thus ensuring a good cell volume change between the layers and
the tetra mesh
Flexible specification of layer growth
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Robust layers generation at extreme heights
Powerful algorithm for very large total layer height and severe proximities
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Conversion of hybrid to polyhedral meshes
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Volume meshing: Hexa/Penta map meshing
By permission of
City University racing team
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Hexa meshing based on block structures associated to the model
HexaBlock meshing
Global box Box splitting Deletion of unneeded
boxes
Snapping of points Snapping of edges Hexa mesh with
O-GRID patterns
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Numerical simulation of flow through S-duct - 1stPropulsion Aerodynamics Workshop July 2012
HexaBlock meshing
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Hexa meshing based on block structured boxes
HexaBlock meshing
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HexaBlock meshing: generic jet exhaust under wing
Pure Hexa Mesh
Combination of hexa mesh with hybrid mesh
h h l f l h
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Batch Mesh tool for complete CFD meshing automation
Batch Mesh provides:
- Automation
- Consistency
- Mesh specs traceability
A d h fi d 1 Hi h Lif P di i W k h
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Automated mesh refinement study - 1st High Lift Prediction Workshop
Coarse
A d h fi d 1 Hi h Lif P di i W k h
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Medium
Automated mesh refinement study - 1st High Lift Prediction Workshop
A t t d h fi t t d 1 t Hi h Lift P di ti W k h
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Fine
Automated mesh refinement study - 1st High Lift Prediction Workshop
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B d C diti t ifi ti f i CFD l
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Output also in CGNS and CFX5 formats
Boundary Condition type specification for various CFD solvers
Full support of OpenFOAM mesh and case setup
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Full support of OpenFOAM mesh and case setup
Boundary conditions, porous and MRF zones, turbulence models, controlDict support,
integrated checkMesh and more
Th l M t i l ti t f R dTh d THESEUS FE
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Thermal Management simulations support for RadTherm and THESEUS-FEDirect I/O of native *.tdf files (Radtherm) and *.tfe files (THESEUS-FE)
Support of shell and solid mesh, Parts (single and multilayer)
and Assemblies, Materials, Boundary conditions
and main solver settings
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ANSA Morphing
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ANSA Morphing
ANSAmorphing tool has the following advantages:
- It provides flexible parameterization of your CFD model
- It is highly controllable allowing the user to perform the exact modifications that are required
- It allows scaling and history tracking of morphing actions
- It is applicable to surface & volume mesh and geometry
- It employs fast morphing algorithms that can be used efficiently and robustly on large CFD models
- It is integrated in the same environment so that it can be used in conjunction with the powerful
ANSA functionality for geometry handling and surface and volume meshing
- Morphing can be performed interactively or in pure batch mode, also coupled with optimizer
software
- It can be used with direct interfaces with all major CFD codes, like Fluent, Star CCM+, and
OpenFOAM among others
Morphing
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Morphing of shell and volume mesh by user-interaction, or in batch mode accelerates engineering
development
Morphing
Mesh Reconstruction after large deformations
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Mesh Reconstruction after large deformations
Original mesh After morph
Skewed solids Reconstruction
Morphing Rear windscreen morph
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MorphingRear windscreen morph
By permission of Volkswagen AG
Morphing External Aero
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Morphing External Aero
Morphing rudder angle change
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Morphing rudder angle change
Morphing External Aero changing the gap of trains
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Morphing External Aero changing the gap of trains
Morphing Scaling deformations
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Morphing Scaling deformations
Adjoint solver sensitivity based optimization
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Sensitivity Based optimization with ANSA morphing boxes and parameters that control the motion
of morphing points using solver calculated sensitivities
Adjoint solver sensitivity based optimization
Morphing of Geometry or FE without Boxes
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Morphing of Geometry or FE without Boxes
Frozen Curves
Origin Curves
Target Curves
Translation
Combinations of snapping of model features to target curves and rigid transformations
Morphing of Geometry or FE without Boxes: changing the ride height setup
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Positioning of the suspension setup without loosing the watertight integrity and quality of the mesh
Morphing of Geometry or FE without Boxes: changing the ride height setup
MorphingOptimization loop
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p g p p
OPTIMIZER
CL,CD
p1,p2,p3
optimump1,p2,p3
optimized CAD
original CAD mesh model
meshing & morphing
geometry morphing
CFD FEA two way coupling
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y p g
Create a model in ANSA and
solve in CFD solver
Extract the pressures from the
CFD solver and map them on an
FEA mesh using ANSA Results
Mapping tool
Perform an FEA simulation to
calculate the deformations
Feed in the calculated deformations in
ANSA morphing tool to deform the
original CFD mesh in the exact same
manner
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Fuel and resting liquid calculations
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Calculation of liquid volume, levels
and centre of gravity for various tank configurations and
positions
Unused liquid traps
g q
One common pre-processing platform for several codes
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p p g p
NASTRAN, ABAQUS, ANSYS,
RADTHERM, THESEUS-FE and more
FLUENT
SC/TETRA
TAU
CFD++
CGNS
CFX
STAR CD &CCM+
POWERFLOW(NASTRAN)
OPENFOAM
UH-3D
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About ETA post-processor
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 82
An advanced CAE post-processing tool for FEA and CFD analysis
Basic concepts and features:
- Powerful tools for 3D & 2D Post Processing for all disciplines
- High performance graphics
- Low memory footprint
- Best-in-class multi-model handling
- Generation of high-quality reports
- Outstanding automation capabilities
3D post processing 2D post processing
User calculations
Correlation studies
Reporting
Automation tools
CFD
From solver results to report
Supported formats
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pp
- Fluent 2d and 3d *.msh, *cas, *dat
- CFDpost compatible *.cdat
Ansys Fluent
- ascii/binary data, partitioned results
- FEMZIP file support
OpenFOAM
Ensight
- *.ccm and *.sim files
StarCCM+
CFD++
SC/Tetra
Radtherm
Tecplot
Fieldview
Ansys CFX
Theseus- FE
Supported Features
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- Standard and Polyhedral elements
- Steady state and transient results
- MRF (multiple reference frame) zones and moving mesh
Visualization of Cut Planes and Iso-Surfaces
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DrivAer model courtesy of Technical University of Munich
Visualization of Streamlines and Oil-flow paths
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Transient Streamlines Pathlines
Creation of Streamlines and Pathlines for transient analyses
Multiple streamline visualization options
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Double fringe bars for simultaneous display of contour and vector data
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Total pressure
contours
Velocity
vectors
Symmetric and periodic display of results
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Image and video output in numerous formats
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ANSA and ETA v15.x powerful pre- and post-processing for advanced CFD simulations January 2015 9090
- JPEG
- PNG
- TIFF
- BMP
- GIF
- PS
- EPS
- MPEG
- AVI
- Animated GIF
Camera Match tool
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Correlate physical images and videos with CFD results
Multi Windows
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- 3d and 2d windows
- Setup styles and entities visibility per window
- Different models can be placed in one or more windows
Model comparison
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Load multiple models and compare cases from different solvers, meshes, physical models and
numerical setups
Model Comparison
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Map results from one model to another and calculate their differences
Model Overlay
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Overlay and compare multiple iterations of data
- Set the respective files or paths of the second model
- All new data are automatically overlaid on the respective windows
Query of model dimensions
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- Measurement of distances
- Projected Area measurement
Projected Area: 1.884
Calculations
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- Drag/Lift Forces and Coefficients
- Moments
- Surface/Volume integrals
- Results Sum, Average, Difference
- Pressure Drop example:
Surface Integrals
- - - - - - - - -
Pid Name Area Weighted Average
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2 interior_downstream_cat 1187.68000
3 interior_upstream_cat 17057.3000
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Sum 18244.98
Avg 9122.49
Diff 15869.62
Plots
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Cd/Cl plots vs Time/Distance
Project Files
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Output all current entities, results & objects in a project file
Cut Planes
Geometry
WindowsStreamlines
Results
2d Plots
AnnotationsTest Data
Report
Project File
ETA native binary format file
Summary report
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Forces-Coefs
Pid Name Drag Coef Lift Coef
1 car_body 0.159 0.671
2 door 0.001 0.012
3 glass -0.004 0.334
4 underbody 0.035 -0.921
5 front_wheelhouse 0.040 -0.124
6 rear_wheelhouse 0.010 -0.092
Total 0.27832966 -0.12114441
Report capabilities
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- Create HTML, PPTX or PDF reports
- Add images and videos
- Support of ETAviewer objects
- Reports can be tagged, stored and quickly recovered
ETA Viewer
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- License free reduced version of
- Web Browser, PowerPoint Plug-in and standalone executable
- Loads Project Files only
Viewer
as PowerPointPlug-in in Slides
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Application industries
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Marine
Motorsports
Aerospace
Rail
Automotive
and more..
Energy
Electronics
Conclusions
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ANSAcovers all the CFD pre-processing needs in a single environment, from CAD import, toadvanced model management , geometry cleanup and preparation, automated surface and volume
meshing and finally morphing and optimization.
It offers to the user the choice between high quality mesh generation on the geometry level
and also quick meshing solutions like surface wrapping, depending on the needs and resources of
the project.
ANSAprovides high quality meshes for all CFD solvers, offering the possibility to make comparisons
or use several codes depending on your needs and is also one common pre-processor platform for
all other CAE disciplines, facilitating data exchange between different departments.
ETAprovides powerful automated post-processing for CFD and integrates withANSAas a
complete pre and post-processing solution for industrial applications.
For more information please contact us at:
e-mail: [email protected]
URL: http://www.beta-cae.gr