# Computational Fluid Dynamics (CFD) PPT, PDF Report

Computational Fluid Dynamics (CFD) PPT, PDF Report: Computational Fluid Dynamics (CFD) use in Aerospace, Automotive, Biomedical, Chemical Processing, HVAC, Hydraulics, Power Generation, Sports and Marine.

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## Computational Fluid Dynamics (CFD) PPT, PDF Report

Grids

• Structured Grid

+all nodes have the same number of elements around it

-only for simple domains

• Unstructured Grid

+ for all geometries

– irregular data structure

• Block Structured Grid

Applications

• Car safety thermal imaging using CFD
• Heat exchanger imaging
• Imaging of missile prototypes

• Relatively low cost.
• It is are relatively low cost, and costs are likely to reduce as computers become more powerful.
• CFD simulations can be accomplished in a short period of time.
• Ability to simulate real conditions.
• CFD provides the ability to theoretically simulate any physical condition.
• Comprehensive information.
• CFD allows the analyst to inspect a large number of locations in the region of interest, and produce an inclusive set of flow parameters for examination.

Limitations

• The CFD solutions can only be as specific as the physical models on which they are based.
• Solving equations on a computer invariably introduces numerical errors.
• Round-off error: due to finite word size available on the computer. Round-off errors will always exist (though they can be small in most cases).
• Truncation error: due to approximations in the numerical models. Truncation errors will go to zero as the grid is refined. Mesh refinement is one way to deal with truncation error.
• Boundary conditions.
• As with physical models, the accuracy of the CFD solution is only as good as the initial/boundary conditions provided to the numerical model.

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Content of the Seminar and pdf report for Computational Fluid Dynamics (CFD)

• What is Computational Fluid Dynamics (CFD)?
• Why and where use CFD?
• Physics of Fluid
• Grids
• Boundary Conditions
• Numerical Staff
• Applications
• Limitation
• Reference

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