• It could be argued that tradition and science are poles apart; while one is based on beliefs and long-established customs, the other is firmly grounded in rigorous research and methodology. Yet traditionally, they’ve both found their place in engineering. But as technology...
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    STAR-CCM+ v11.04 brings Solution History support for derived parts! This improves interaction with transient...

  • Custom Sim Trees in STAR-CCM+ v11.04 are a fundamentally new way to work with the sim tree, allowing users to create smaller node trees in a separate window for less scrolling and easier navigation overall.

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    Marine transport has been around for much longer than any other transportation sector. It is today, as ever, the main method for...

  • The new automatic time stepping in STAR-CCM+® v11.04 automatically adjusts the timestep size of simulations dynamically. This helps to reduce time to achieve solutions for transient runs by avoiding the use of unduly small timesteps.

    Blog entry

    Deriving and supplying appropriate properties for complex structures has not been an easy task, but all that is about to change...

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Matthew Godo

In STAR-CCM+® v11.04, the highly regarded (extended) pom-pom adds to our list of viscoelastic constitutive models. Best suited for highly branched polymers like low density polyethylene (LDPE), it is able to most accurately predict viscoelastic responses for elongational flows commonly...

  • Kristian Debus
    Fluid-Structure Interaction (FSI) is the study of thermo-mechanical interactions of a fluid and a solid structure. FSI mo...
  • Durrell Rittenberg
    At this year's AIAA SCITECH annual conference, I sat down with the editors of Aerospace America to talk about the future of...
  • Gaetan Damblanc
    The demand for safe and efficient Li-ion batteries has never been as high as it is today. By coupling Battery Design Stud...
What is CFD?
Computational Fluid Dynamics is a methodology that allows engineers to predict the performance of their designs when exposed to fluid flow, either internal flow (such as the flow of air and gasoline through an engine manifold) or external flow (such as the aerodynamic flow past an automobile or the hydrodynamic flow past a boat). CFD software programs can simulate problems involving gases, liquids and solids and multi-phase problems that depend on the interaction of any number of the above. CFD is used in the design of almost every major product. Reducing uncertainty in the design process, and resulting in higher quality products and designs, with greater robustness that better meet customer requirements.
More than Flow!
Although most practical engineering problems involve fluid dynamics to some extent, finding the solution to real-world engineering challenges involves taking accurate account of a range of physical phenomena. For this reason CFD tools can account for wide range of associated physics, including heat transfer, chemical reaction, combustion, solid transport and acoustics. One important class of problems are those that involve FSI or Fluid Structure Interaction, where the fluid flow influences a physical structure - such as the bending of an airplane wing, or of a boat being slammed by waves. Computational Fluid Dynamics simulations can account for both the influence of the fluid on the structure, and of deformations in the structures shape on the fluid.
Simulate the System
Complex industrial problems require CFD solutions that span a multitude of physical phenomena, which often can only be solved using simulation techniques that cross several engineering disciplines. Engineers demand the ability to "see the big picture". Simulating whole systems with Computational Fluid Dynamics and not just individual components, taking account of all the factors that are likely to influence to performance of their product in its working life. In short, to simulate the performance of their design in the context that it will actually be used.
Multi-disciplinary Design Exploration
Although CFD is can usefully be applied to almost any engineering problem, it's real value comes from being able to improve a product or design through multiple design iterations, using engineering data from the simulation results to drive the design process. Ultimately this results in higher quality, robust products, that better fulfill customer expectations.
CD-adapco is pioneering an approach called "MDX" or "Multi-Disciplinary Design Exploration", in which sophisticated software is used to drive the simulation through a complete range of operating scenarios, including a range of geometrical configurations and different operating points. This approach can be used to gain a complete understanding of the performance of the product across the whole design space. When combined with HEEDS, CD-adapco's dedicated optimization software, the MDX approach can be used to calculate the best possible combination of design parameters to maximize the real-life performance of the product.
CD-adapco
CD-adapco is a global engineering simulation company with a unique vision for Multidisciplinary Design eXploration (MDX). Engineering simulation provides the most reliable flow of information into the design process, which drives innovation and lowers product development costs. Our customer approval ratings are very high; in the last customer survey 94% of customers declared themselves satisfied, or very satisfied with CD-adapco software and services, a fact reflected in our consistently high customer retention rate. With over 3,200 customers worldwide, our software is currently used by 14 of the 15 largest carmakers, by all of the top ten suppliers to the aerospace industry and by nine of the ten largest manufacturers in the energy and marine sectors.
CD-adapco is a Siemens business.