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Computational Fluid Dynamics (CFD) is a valuable engineering simulation tool employed in the design and optimization of fluid system components. It enables design engineers to see inside the fluid system component and to examine fluid properties at every point in the fluid field.

In recent years, advances in the technology have increased the speed and ease of use of CFD.

• 3-D CAD models can now be easily imported and embedded in CFD programs;
• There are quick tools for mesh generation, as well as other shortcuts for set-up;
• Java interface improves user friendliness;
• Multiple computer processors can work in parallel on parts of the same problem, increasing the speed for more and more complex simulations;
• Models can be run and the results accessed remotely or on laptop computers.

Basic steps in conducting a CFD simulation are as follows:

• Import the geometry from CAD;
• Mesh the model;
• Apply the physics and boundary conditions, including pressure, fluid properties, velocity, flow rate and temperature;
• Run the simulation and create output;
• Correlate results with test data and first principles; and
• Refine simulation if necessary.

CLICK HERE for two examples of how the CFD technology is applied.