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CFD-ACE+ User Tips

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Modeling Momentum Loss in CFD-ACE+

In engineering systems, the presence of obstacles in the flow path provides resistance to flow accompanied by a pressure drop across the component. Often, the flow paths within such components are too complex to be resolved by a mesh (assuming it is known) and only the macro effects are of interest to design engineers.

 

Using the Thin Wall BC to Model Thermal Resistance

CFD-ACE+ has a unique Boundary Condition feature called "Thin Walls". This feature can be used to model very thin entities such as baffles, plates, and thermal resistances. Since the entity is very thin, you can actually ignore the volume it displaces, but not from a momentum, heat transfer, and/or scalar transport standpoint.

Trend Based Analysis

One of the most powerful uses for CFD modeling efforts is trend based analysis. As the name suggests, this type of analysis work focuses on the TRENDS of simulations rather than concentrating on the absolute result of a single simulation.

Unit Menu Options in CFD-ACE-GUI

Many times the data available to you is not in SI units, but in other units like CGS or English or a combination of different units. Having different unit systems available in the set-up process is helpful since you do not have to convert the units yourself.

Create Your Own Gas, Liquid, or Species Inside the Database Manager

The Database Manager allows the user to set up user defined chemical reactions and volume condition properties. It comes with predefined data, but you can build and maintain your own local database and setup and store commonly used data (property values, chemical reactions, species, etc…) for rapid re-use in any simulation.


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