Cooling Fan Noise Simulation Video

Cooling Fan Noise Simulation Video 

Acoustics Applications Video

What would you do if your cooling fan makes too much noise?

The ability to control interior and exterior noise is of increasing importance for the design of all types of vehicles. Today’s drivers and passengers are demanding quieter cars and government regulations are becoming more stringent on noise pollution.

Cooling fans are one of the applications area where OEMs are finding opportunity to evaluate and reduce noise levels early in the design process.

Besides automotive cooling fans, small radius cooling fans are a proven solution for electronic device thermal management; however, the design must be carefully evaluated to ensure the optimal balance between low noise levels and sufficient cooling air flow is met.

In the video, watch how Exa’s PowerACOUSTICS can accurately predict fan noise levels well before any prototype is built. Even complex configurations, such as inline contra-rotating fans, can be are easily evaluated. The fan noise is both visually and audibly simulated providing the designer a complete view of the generation and propagation of acoustics/noise sources.

Double and single fan modules, as shown in the video, often have different main noise generation mechanisms, which typically makes predicting and evaluating acoustic performance a challenge. With PowerACOUSTICS, Exa’s numerical tools capture all the noise mechanisms to predict reliable acoustic levels. Complex enclosures integration effects are also accounted for in the simulations, guaranteeing reliable noise predictions. Both tonal and broadband components are captured reducing the risk of late-stage failures.

Exa’s post-processing suite provides engineers with the tools they need to visualize and communicate simulation results to stakeholders. The video shows how a simple design element benefits the fan acoustic performance. Exa’s tools allow designers to digitally hear and observe how design changes can impact acoustics.

As more consumers take into consideration acoustic cabin comfort quality during the buying process, it’s essential for automakers to find ways to economically design quieter cars. With aeroacoustic simulations, multiple variables can be tried and tested before any prototype is created saving time and money in the long run. 

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