CFD Solutions
Cradle CFD – World's leading CFD technology
Cradle CFD
Smart Multiphysics Focused Computational Fluid Dynamics
World's leading CFD technology available to boost smart manufacturing
AWARD WINNING
Cradle CFD is a series of practical, state-of-the-art CFD simulation and visualization software. Embracing remarkable processing speed, refined technology, and proven practicality verified by high user satisfaction, it has been in use for diverse applications, such as Automotive, Aerospace, Electronics, Building and Architecture, Civil Engineering, Fans, Machinery, and Marine developments, to solve thermal and fluid problems. Incorporating the reinforced Multiphysics co-simulation and chained simulation capability to achieve couplings with Structural, Acoustic, Electromagnetic, Mechanical, One-Dimensional, Optimization, Thermal Environment, 3D CAD and other relative analysis tools, as well as award-winning postprocessing feature to generate visually powerful simulation graphics, Cradle CFD enables any level users to process advanced simulations.
Cradle CFD 2022 is available today. For more details, please visit:
Learn more about Cradle CFD products and services at www.cradle-cfd.com
scFLOW | SC/Tetra
New Generation CFD software with Multiphysics and General Purpose Capabilities
Cradle CFD 2022 is available today. For more details, please visit:
Overview:
scFLOW is a next generation CFD tool that uses unstructured mesh to accurately represent complicated geometry. With Preprocessor that helps any level users generate high quality polyhedral mesh elements and construct complicated models, and Solver that ensures more stability and speed, scFLOW is capable of solving aerospace and automotive aerodynamics, performance of fans, pumps and other rotating equipment, design problems of electronic devices, multiphase phenomena, marine propeller cavitation, and varied problems. Through co-simulation and chained simulations coupled with MSC Software Marc, Nastran, Adams and Actran, more realistic coupling and multidisciplinary analyses with fluid, structure, acoustics, and multibody dynamics can be achieved.
Learn more about Cradle CFD products and services at www.cradle-cfd.com
For general and product specific platform support, please visit our Platform Support page.
Software Features
Polyhedral Mesher
The shape of a model to be analyzed can be represented by using the following methods: voxel method (slanted faces and curved faces are represented in cuboids), cut-cell method (the shape of a model created with a CAD tool can be represented more accurately), and finite element model method (a model of an arbitrary shape defined with unstructured mesh can be overlapped on a model defined with structured mesh to use the shape created with a CAD tool as is).
Free Surface (Steady-state / Transient)
The shape of an interface between a gas and a liquid can be simulated. Calculations by VOF method (new method: FIRM) are fast and accurate, and functions including moving boundary, overset mesh, and particle tracking can be used in combination. Because a phenomenon where the phase interface becomes stable can be analyzed in a steady-state calculation, the result can be obtained in a shorter time than before.
Moving Mesh (Discontinuous Mesh / Overset Mesh)
Discontinuous mesh function enables an analysis with consideration on shear heating between rotor and pad in a disk brake. The function also makes it possible to analyze a combination of rotation and translation such as a piston pump. Free movement of regions, that cannot be analyzed using existing functions such as stretching or rotating elements, can be simulated by overset mesh function to overlap mesh elements for stationary and moving regions.
6-Degree-of-Freedom Motion
Passive translation and rotation of a rigid body receiving a fluid force can be analyzed. With the function, the user can analyze a ball valve with consideration of the elasticity of the spring (1D translation), and paper airplane with consideration of 6-degree-of-freedom rigid-body motion (3D translation + 3D rotation). In addition, the function is applied to analyses of check valves, wind power generators, and blades of wave power generators.
Cavitation
This function enables simulation of a vaporization phenomenon called cavitation, which is caused at an area where pressure of a liquid becomes lower than in the surrounding area, such as with a propeller rotating at a high speed under water. The occurrence of cavitation can be predicted by applying the cavitation model based on the pressure values. The software also supports problems caused by cavitation such as erosion.
Compressible Flow
The software can analyze phenomena such as supersonic flow and significant expansion/contraction of volume. For a compressible fluid, both the pressure-based and the density-based Solvers can be used. The density-based Solver keeps the calculation stable even with high Mach number. You can select either Solver depending on the analysis target and phenomenon.
Evaporation/Condensation
Free surface analysis function (VOF method) of this software can simulate phase change between gas and liquid, such as evaporation and condensation. By considering phase change, not only simple heat conduction but also heat transfer from latent heat can be calculated. For example, this method can be applied to internal flow simulations for heat transfer devices such as heat pipes, in which a refrigerant liquid changes to vapor by absorbing heat from an outer region.
Discrete element method (DEM)
With the use of particle tracking function with inter-particle forces (DEM), simulation can be performed on phenomena where fluid flows through a particle filling, such as fluidized bed and powder conveying.
Thermoregulation-model (JOS)
Combination use of the thermoregulation-model (JOS) and a fluid analysis enables analyses of the surface temperature of a human body under a certain thermal environment. It can also be used to analyze temperature and humidity changes in the surrounding environment of a human body. The user can consider age, clothes, and physiological phenomena of the human body such as heat transfer by blood flow in addition to the surrounding environment of a human body such as temperature and velocity.
LES
LES is one of the turbulent flow models. It models eddies smaller than the mesh element in size and directly calculates other eddies. Although calculation load is large, LES enables simulations closer to real phenomena. LES is often used in noise analyses, significantly affected by time variation, to simulate the behavior of small eddies. The user can use the hybrid model with RANS, a turbulent model of small calculation load.
Co-simulation with MSC Software products
Through co-simulation and chained simulations coupled with MSC Software Marc, Nastran, Adams and Actran, more realistic coupling and multidisciplinary analyses with fluid, structure, acoustics, and multibody dynamics can be achieved.
Learn more about Cradle CFD products and services at www.cradle-cfd.com
scSTREAM | HeatDesigner
Fastest and Easiest CFD software for Electronics and Architecture
Cradle CFD 2022 is available today. For more details, please visit:
Overview:
scSTREAM is a general-purpose CFD tool that uses Cartesian or cylindrical structured mesh to enable easy mesh generation and high-speed simulations to be performed in a fraction of the time. Due to the meshing nature and analysis system that enables large-scale calculation, scSTREAM works best at processing extensive simulations, where users are required to solve thermal problems of electronic devices and indoor environment, wind flow, and heat island phenomena.
Software Features
Various methods to represent shapes
The shape of a model to be analyzed can be represented by using the following methods: voxel method (slanted faces and curved faces are represented in cuboids), cut-cell method (the shape of a model created with a CAD tool can be represented more accurately), and finite element model method (a model of an arbitrary shape defined with unstructured mesh can be overlapped on a model defined with structured mesh to use the shape created with a CAD tool as is).
Large-scale calculation
In structured mesh, even a complicated model does not need to be modified almost at all and the shape or the scale of a model does not affect the difficulty of mesh generation. In addition, Solver performs a calculation at a high speed in parallel computing and achieves effective processing as the speed increases depending on the number of subdomains.
Radiation
Radiation heat transfer with the consideration of diffusion, reflection, transmission, refraction, and absorption can be calculated. VF (view factor) method and FLUX method*1 can be used. The lamp function can simulate radiant heat by a filament without detailed shape information of a lamp. In addition to the filament, laser beam and defective radiation specified by half-value angle can be used as a heat source model.
Reading wiring patterns
To calculate heat transfer conditions depending on wiring patterns of a printed circuit board (PCB) in detail, the module can read Gerber data output from an electric CAD tool and import the data as a model for a thermo-fluid analysis. By using Gerber data, a more realistic calculation result can be obtained with the consideration of heat transfer affected by an uneven wiring pattern.
Solar radiation (ASHRAE, NEDO)
Climate data published by ASHRAE and NEDO is preset and can be used for condition setting. By entering arbitrary values of longitude, latitude, date, and time, the solar altitude and the azimuth angle of the sun at a specified location and time are calculated automatically. The effect of solar radiation can be examined in detail. Various parameters including absorption and reflectivity of solar radiation and materials which transmit light diffusely, such as frosted glass, can be set.
Humidity / dew condensation
The software can analyze humidity in the air. Dew condensation and evaporation on a wall surface due to temperature change can be considered and the amount of dew condensation and evaporation per time can be obtained. The software supports the analyses of moisture transfer inside a solid, and the function can be used to analyze a permeable object and dew condensation inside a part.
Particle tracking
The software simulates the behavior of particles depending on their characteristics (diameter, density, and sedimentation speed) and action/reaction between particles and a fluid. This includes sedimentation due to gravity, inertial force for mass particles, and movement due to electrostatic force, liquefaction at adhering on a wall surface, evaporation and latent heat, the behavior as bubbles in a liquid for charged particles.
Discrete element method (DEM)
Multiphase analyses can be performed, which enables coupling of fluid analysis and flow analysis of particles.
Moving objects
A flow generated by a moving rigid object can be calculated. Conditions including the motions of an object (translation, rotation, and elastic deformation), heat generation/absorption, and air supply/return can be set. The model of a moving object is created on another mesh. In this way, conditions such as the distance that the object moves are limited very little.
Free surface
The software calculates the shape of an interface between a gas and a liquid. Either MARS or VOF method can be used, and the calculation target phase can be selected: both gas and liquid, only gas, or only liquid. The function is useful in a wide range of fields: from an analysis of tsunami in the civil engineering and construction field to an analysis of soldering in the electronic device field.
Thermal comfort, heat stress risk and ventilation efficiency indices
Comfort indices PMV and SET* can be derived from already obtained temperature, humidity, and MRT (Mean Radiant Temperature), as one of result-processing functions. WBGT (heat stress risk indices), and the scale for ventilation efficiency (SVE), of which some indices can be converted to a real time, can be set by one click, and the range of calculation area can be selected (for example, either one of two rooms).
Panel (heat conduction / transfer / thermal transport)
Material properties and motion conditions can be applied to a panel having no thickness in model, which allows for heat conduction to other parts and heat dissipation to air. This enables the simulations of paper feeding and film drying processes, where thin objects move and go under heating repetitively.
Learn more about Cradle CFD products and services at www.cradle-cfd.com
scPOST
Powerful and Impressive Visualization software for Multiphysics
scPOST 2022 is available today. For more details, please visit:
Overview:
In Postprocessor, you can visualize the simulation results calculated in Solver. It is effective for product design reviews because in Postprocessor, you can check, for example, temperature distribution at the places that cannot be measured or observed in the actual products. You can output not only still images but also animations, as well as output files for CradleViewer.
Drawing Samples
Isosurface
Contour
Oil flow
Volume rendering
Vectors
Compatible formats for import/export
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Learn more about Cradle CFD products and services at www.cradle-cfd.com
PICLS
Tool for real-time thermal simulation of printed circuit boards
PICLS is a thermal simulation tool which helps designers easily perform thermal simulation of PCBs. Even if you are unfamiliar with thermal simulation, you will obtain a simulation result without stress through the tool's easy and quick operation in 2D. You can import the data of a PCB created in PICLS to scSTREAM and HeatDesigner, that is, you can pass the analysis data seamlessly from the PCB design stage to the mechanical design stage.
Useful applications of PICLS
- Troubleshooting thermal issues of current products
- Examining thermal interferences of part layouts
- Consider heat release changes depending on a wiring pattern (coverage ratio)Examine the arrangement of thermal vias (e.g. location, number)
- Examine the arrangement of thermal vias (e.g. location, number)
- Examine the performance of a heat sink
- Examine the size of a PCB
- Examine the number of layers and the thickness of copper foil
- Consider natural/forced air cooling
- Consider radiant heat
- Considering heatsinks (number of fins, size
- Examining heat dissipation performances by connection to enclosure
- Considering PCB mounting environment
Software Features
External file interface
You can import IDF 3.0 and Gerber data
Consideration of simple enclosure
You can consider heat dissipation by connection to enclosure
Heatsink
You can allocate and display parts such as plate fins and heat dissipation plates
Library
You can register and reuse created parts to the library
Cutting out a PCB
Create a PCB of arbitrary shape by cutting out
Preview
Check the layout of components in 3D
Setting wiring pattern coverage ratio
Specify the area by rectangle and polygon
Placing thermal vias
Specify through hole and IVH
Specify filled via
Setting mounting environment
Mount horizontally/vertically
Consider forced air cooling and radiation
Displaying each layer
Check each layer by selecting a focused layer
Real-time display
Check component translation in real time
Report output
Output analysis results as reports
Alert function
You can check parts whose temperature is higher than threshold
Linking with thermo-fluid analysis
Output CAB file for scSTREAM or HeatDesigner
Learn more about Cradle CFD products and services at www.cradle-cfd.com
Utility Tool
scMonitor
You can visualize the progress of the simulations in scMonitor during the Solver calculations. You can check, for example, pressure contour of a registered surface and temperature contour and flow vector on axial planes.
* To use this function, a Postprocessor license is required in some areas.
LFileView
LFileView is a dedicated viewer for L files, which are output during the simulations automatically. You can check the progress of the simulations numerically with variable values for each cycle and the maximum/minimum/average values for the specified output.
VB Interface
The software supports COM technology provided by Microsoft. You can control the software by using Microsoft Office products and Visual Basic (VB). A tool to create and execute the automatic operation flow, scWorkS ketch, is bundled with the software. By using the tool, you can create your original automatic operation flow easily. In addition, you can register the created flow as a template and reuse it.
Useful functions
- Tool to create a report automatically
- Unique GUI
- Tool to create a model from the 2D data automatically
Parametric Study Tool
Using the parametric study tool, you can set analysis conditions to multiple cases all at once - for instance, when you run several calculations with modified parameters such as flow rate or amount of heat. The interface is user-friendly with spreadsheet-like settings. You can check, in the same interface, the status of each case and the output parameters such as the maximum/minimum temperature or aveage pressure on a specified plane.
HeatPathView
Using HeatPathView, you can review heat dissipation measures with focus on each component. The tool enables the intuitive and comprehensive evaluation of heat balance and search of heat dissipation paths. By understanding the flow of heat, you can make your heat dissipation designs more reliable.
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scCONVERTER Data (FLD/FPH files) such as pressure, temperature, and heat transfer coefficient obtained in thermo-fluid analyses can be mapped to input data of structural analysis software (Abaqus, I-DEAS, Nastran). In addition, input data of structural analyses can be converted to an FLD or FPH file. scCONVERTER can create an animation file from multiple still images (BMP/PNG files), edit FLD/FPH files, and convert a P file to an FLD file or an FLD file to an iFLD file. |
CradleViewer
The simulation result visualized in Postprocessor can be saved in a file and the file can be opened in a simple viewer. In the viewer, the viewpoint ant the distance can be changed with the mouse and by touch operation*. CradleViewer is provided free of charge. You can share the simulation result even in an environment without Postprocessor installed.
Optimus® for Cradle
Optimus has a direct interface with scSTREAM, scFLOW and SC/Tetra, and the optimization can be performed without any additional customization. It also supports a creation of an original GUI using API and an optimization using Quality Engineering (Taguchi Method).
Learn more about Cradle CFD products and services at www.cradle-cfd.com
Actran TM
A powerful acoustic CAE tool for turbomachinery noise prediction
Use Actran TM to analyze the sound radiated by turbomachinery and to optimize the related acoustic treatments. One of the challenges of acoustic CAE methods is handling of large models associated to high wave number and to large geometrical size and complexity. Actran TM provides efficient solver technologies to address this problem, which includes advanced parallel processing.
In addition to studying aircraft engines, Actran TM can be used to analyze inlet and outlet liners for helicopter turbines, environmental control systems, and auxiliary power units, and for non-aerospace applications like computer cooling systems. Actran TM can be complemented by Actran DGM to solve problems involving complex shear layers and flow gradients occurring at engine exhaust.
Sample applications:
- Aircraft engine noise, including nacelle design
- Ducted cooling systems (electronic devices)
- Blower systems (air conditioning modules)
- Helicopter turbine noise
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Learn more about Actran products and services at www.fft.be |
Actran DGM
Model Noise Propagation in Complex Flows
Actran DGM solves the linearized Euler equations using discontinuous finite elements and is used for predicting the noise propagation in complex physical conditions. It is particularly well suited to solving aero-acoustic problems at the exhaust of a double flux aero-engine, including effects such as propagation through strong shear layers, high temperature gradients and non-homentropic mean flows.
Actran DGM uses an unstructured mesh method, and is not constrained by standard limitations of Finite Difference Method. As the order of the elements is automatically adapted, the mesh can be non-homogeneous, with a combination of very small and large elements in the same mesh, without any performance degradation.
Sample applications:
- Exhaust of turbomachines
- Inlet of large turbomachines
- All acoustic propagation problems with non-homogeneous mean flow conditions
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Learn more about Actran products and services at www.fft.be |
Actran VI
Dedicated pre and post-processor for the Actran CAE software family
Actran VI is the new graphical user interface specifically designed for pre- and post-processing vibro- and aero-acoustic analyses of all Actran modules.
Including an Actran input file reader to check or modify input files generated by other tools, Actran VI supports several mesh formats (Nastran BDF, ANSYS RST and CDB, Actran DAT and NFF, I-DEAS UNV, Patran Neutral Format) as input for creating Actran input files.
Its various integrated pre-processing tools ease the creation and editing of Actran models. It is easy to visualize specific Actran model features (such as modal basis, sources or infinite elements coordinate system), to specify the projection parameters between incompatible meshes, to insert additional entities (e.g. control points) or to visualize the specified boundary conditions. Additionally, it is also possible to define analysis templates (with or without mesh) to ease the creation of recurrent analyses.
The post-processing tool supports different results formats, such as OP2, UNV, NFF, RST, HDF and punch files. It contains different visualization modules, such as contour plots (maps), iso-surfaces, vectors or deformations, which can be freely combined and controlled using different filters. Synchronized viewports makes it easy to compare results at different frequencies, phases, times or related to different load case.
An animation module dedicated to complex harmonic results coupled with video export capabilities is also included.
Actran VI includes the PLTViewer and WaterfallViewer modules for easily displaying and handling frequency response functions, in single or multiple loadcases.
Sample applications:
- Validation, visualization and modification of existing Actran analyses.
- Creation of new Actran analyses.
- Display of all Actran results.
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Learn more about Actran products and services at www.fft.be |
