Fluid Dynamics

Computational fluid dynamics (CFD) has now become a practical tool to aid understanding and assessment of situations in which fluid flow is a significant factor. As well as predicting flow characteristics, the technique can also address heat and mass transfer. CFD is now being used more widely for engineering applications by many industries, as the benefits become apparent.

The benefits of CFD include:

Reduced design time   Fewer experiments/prototypes required   Better understanding of the behaviour and phenomena   Enhanced product performance due to improved knowledge

CFD is typically used at one or more of the following stages:

Research   Performance assessment   Design   Failure analysis

Typical common applications of CFD include:

Chemical and food processing Electronics cooling Flow over vehicles Heat exchangers and cooling systems Compressor design Ventilation systems

Examples of projects undertaken by Eatec's staff include:

Ranking of different designs for an underwater vehicle with respect to drag and the characteristics of the flow over the bodytechniques   A transient analysis of natural convection flows within a sealed cylinder exposed to an external heat source   Assessment of the behaviour of a jet of steam from a ruptured tube   Prediction of particle deposition in turbulent flow using particle tracking In some instances, fluid or thermal loading needs to be considered in a Design Assessment, but they may not be known to a sufficient degree of accuracy. By undertaking a CFD analysis prior to the structural assessment, these forms of loading can be determined. In addition to undertaking CFD analyses, where appropriate, Eatec can apply simple analytical methods to address client's requirements.

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