 Software Cradle Co. Ltd. (Osaka, Japan), is a leading developer and service provider of CFD software for design engineers. Established in 1984, Software Cradle offers a suite of CFD products consisting of SC/Tetra (general purpose, unstructured mesh CFD), STREAM (general purpose, structured mesh CFD), HEAT Designer (electronics thermal analysis), and CADthru (CAD to CFD geometry translation). Software Cradle products are distributed and supported worldwide by its offices in Japan and North America (Cradle North America, Dayton, OH), and distributors throughout Asia, North America, and Europe.
How Software Cradle CFD Software Products Address Common Frustrations with CFD Software
Choosing the right CFD software package for your engineering needs is critical to your success. If you don’t select the right product, you’re guaranteed to waste valuable time, money, and resources, not to mention totally frustrating yourself and everyone counting on you to deliver results. Ideally, your CFD software will
- Efficiently build a high quality CFD mesh,
- Quickly solve a variety of complex problems,
- Parametrically evaluate the effects of design modifications, and
- Effortlessly produce final reports with impressive graphics.
How well the software achieves these goals for your specific applications determines your satisfaction. Before you commit to a CFD software license, be sure you understand the potential problems that can keep you from achieving your goals and how Software Cradle CFD software products overcome these obstacles.
Sometimes “One Size Fits All” doesn’t fit all very well
A “One Size Fits All” general purpose Computational Fluid Dynamics (CFD) software package may be able to solve every fluid/thermal application there is, but it may be more than you require. Carrying extra baggage you’ll never use can be inefficient. CFD software is primarily classified by the types of geometry you’ll be modeling and the physical phenomena you’ll be simulating.
If the geometries you’re modeling contain arbitrary shapes and complex curved surfaces and accurate representation of the flow field near these surfaces is critical, unstructured grid CFD software is your best choice. Most CFD software on the market today is unstructured grid code. For these customers, Cradle offers SC/Tetra, a general purpose, unstructured grid CFD software with an industry leading flexible and robust grid generator.
 In contrast, structured Cartesian CFD software is less mentioned today, and some CFD developers consider structured code “old” technology. But many fluid/thermal applications, especially those where fine geometrical details are less influential, are better suited to structured grid software. Compared to its unstructured counterpart, structured grid solvers are faster, more accurate, more robust, and less memory intensive. Some applications include electronics cooling (appliances, equipment casings, circuit boards, and heat sinks), building HVAC (clean rooms, computer center ventilation, houses, and parking structure ventilation), and environmental issues (exhaust stack design, NOx diffusion in urban areas, heat island convection, flow around and inside buildings, and flooding). For these customers Cradle offers STREAM, extremely fast and versatile, structured grid CFD software.
For those who perform electronics thermal analysis, Software Cradle offers HEAT Designer, a compact thermo fluid analysis tool specifically designed for electronics. HEAT Designer uses a unique, easy to use interface for thermal analyses. It is coupled to a specialized version of the STREAM solver providing robust solution capabilities. The Windows version of HEAT Designer can also be controlled from an external program such as Visual Basic or Excel by using "Microsoft COM technology". This can improve operating efficiencies by automating processes and/or creating user interfaces that are customized for specific user groups and applications.
I can’t build a high quality mode l
In the CFD world, a good model is everything. A good model will produce accurate answers while a poor model can keep you from getting a converged solution, or worst, converge to an incorrect solution. Building a good model is usually the most time consuming part of the CFD analysis. Software Cradle offers CADthru, a CAD/CFD translator designed to clean up artifacts from the CAD process and reduce the amount of detail work often required to make the geometry ready for mesh generation. Almost all CAD geometries, with any significant amount of complexity, will require some diagnosing and repair.
Most CFD software has modest capabilities for repairing geometries and the tools provided with the software are usually limited to very simple geometries. If you work with complex geometries, most CFD software packages will necessitate purchasing additional 3rd party grid generation software to diagnose and repair the geometry and generate the volume mesh. In contrast, SC/Tetra has fully integrated geometry diagnostic and repair tools and mesh generation capabilities that rival 3rd party software packages.
I can’t properly simulate the physical phenomenon
 Both SC/Tetra and STREAM are general purpose CFD packages that provide the flexibility to simulate a wide variety of fluid/thermal applications. As you progressively demonstrate the value of CFD to your customers, you’ll likely be requested to do more CFD and apply it to different applications. At a minimum, you should be able to solve for the flow field and temperatures (with heat transfer and radiation). Can your CFD software also handle multi-phase flows (multi-fluids and multi-phases)? How about chemical reactions and free surface flows? Can you simulate transients? How about moving boundaries and compressible flows? Or do you need a human body thermoregulation model (as found in SC/Tetra V7)? Both SC/Tetra and STREAM offer a diverse range of solver functions and capabilities.
CFD is expensive
You can expect the average cost for a single seat, general purpose CFD software license to be approximately $ 25K per year.
If the geometry you’re modeling is highly complex, requiring 3rd party software for diagnosing and cleaning the geometry and creating the volume mesh, this will cost an additional $ 10K per year. $ 35K per year to get in the door is expensive! In contrast, a single seat license for SC/Tetra CFD software starts at $ 15K per year. STREAM and HEAT Designer are also priced well below their respective competitors. |
